When Yom Kippur is over, you're not the same person. You have changed fundamentally. You have learned the very great lesson of Bitachon (trust in Hashem). You put i the effort of believing in Hashem's management of all your affairs. That is a gem that's settled in your mind and it's a diamond that's going to shine and illuminate all the days of the coming year. -- Best Day of the Year (#933)

Abraham made a career of demonstrating to the world the plan and design of Hashem, and for this he was chosen to be the father of the Jewish people. -- Rejoice, O Youth

Alas for the man who permits himself to be deluded by the darkness of the Evil Inclination! Such men are not able to enjoy the Afterlife, for they are not prepared; they have accustomed themselves to delight in the false pleasures of the body. The conditions which made the righteous happy in the Afterlife, make the unprepared unhappy. -- Rejoice, O Youth

There are no accidents in a purposeful world. The fact that Man rules the world demonstrates that the world was made for man. -- Rejoice, O Youth.

Alas for the man who permits himself to be deluded by the darkness of the Evil Inclination! Such men are not able to enjoy the Afterlife, for they are not prepared; they have accustomed themselves to delight in the false pleasures of the body. The conditions which made the righteous happy in the Afterlife, make the unprepared unhappy. -- Rejoice, O Youth 

When Avraham decided to eat, it wasn’t on the whim of the moment, it was a decision based in the best interests of his health. Like the Rambam says you should, in order to know Hashem. Because he ate what was best for his health that would help him continue his career as a servant of Hashem. And therefore these men are called the eilim, the mighty ones. And because of them Hashem loves their children forever. – Shemonah Esrai (#267).

​There's a very big job before us and that job is to think about Hashem's accomplishments in the world. Shabbos is a day for that purpose. “Atah kidashta — You made holy…”, holy means You set aside this day and You gave it a dignity, “Lishmecha” for Your name.
 
The purpose of Shabbos therefore is to speak about Hashem, to speak about what He did.
– Preface to Shabbos (#439)

Hashem chose our nation because of the virtues of our forefathers, and our people have been loyal to the Torah through thick and thin, for thousands of years. Anything that we did that’s misdeeds, that’s natural, it’s human, we’re not angels, but no nation in the world could ever aspire to equal us in virtue. And even today the Torah observant Jew is a model of virtue, of decency that all mankind could learn could learn from.– Preparing for Eternity (#549)

In old Yerusholayim, they counted their words. “Reuven ben Shimon eid” — that’s how you sign documents today. They signed Reuven ben Shimon; they didn’t want to add the word eid because it’s an extra word. They were stingy with words and stingy with talking. What we say in twenty words, they said in three words.
“Le’oylom yishneh odom lutalmidov buloshon ketzoro” you should only teach Torah to your talmid in abbreviated form. Why waste words? – The Drive to Perfection (#736)
 

Of course sometimes diseases happen, but the Rambam tells us in most cases, it is a result of negligence. If somebody’s coughing and sneezing, keep away from him. He has a cold, don’t shake hands with him. People are speeding and careless with street traffic; you have to look back and forth on both sides and take your time before you cross. You lose a minute and save a life. Hashem rewards for these things. – Test of Emunah (#557)

It’s free will, the divine spark in man that means living. Without free will, it’s only habit, it’s not bechira, he’s really a dead man. And so what does Hashem do when people honor Him with prayer but their hearts are far away? He punishes them with something worse than the tochacha. He takes away the great leaders and they are left without guidance. They are left in an eternal sleep, a sleep of death. – Bitachon (#32)

We must be ambitious to gain a closer awareness of Hashem. Now suppose when B'nai Yisroel were to receive the Torah,  a very frum Jew would have said, "I believe you! Tell me afterwards what you saw; I’m mikabel right here!" Oh no, Hashem would have said. There’s no bigger success than coming to closeness of feeling the presence of Hashem. To see Hashem as much as possible, that’s our success in this world. – Show me Your Glory (#E176)

One who can give a punch and doesn’t do it, such as Dovid Hamelech. When he was insulted, Dovid said, "Don’t touch him, Hashem told him to curse me!" And because of that incident Dovid became great. Our forefathers were the true heroes. Avraham and Yitzchak and Yaakov were people who learned for the sake of Hashem how to control themselves. And they taught the system to their children and to their followers. – Shemonah Esrai (#267)

Hashem has two different ways of conduct in this world. When a man obeys the laws of nature, Hashem rewards him. Sometimes he is rewarded merely for that and sometimes by obeying the laws of nature when he receives a reward, it’s actually a hidden reward for some mitzvah that he did. –Test of Emunah (#557)

When something happens, say a person was hit by a car when he ran out recklessly, he has to think two thoughts. First, he’s being punished for endangering his safety. Hashem said I gave you a body and I want you to take care of it, and since you didn't you are guilty for whatever happened. Secondly look into his deeds and discover what was it that caused him make this error. –Test of Emunah (#557)

​The mishna explains the process Hashem follows. In yeshiva a man is free. He can use his time to accomplish. But when he doesn’t, he is punished with the loss of free will. And there’s no worse punishment because once he’s in the army he can’t do whatever he wishes. Or even when he’s working, he’s enslaved. And now he looks back to the good old days; he had opportunity but didn’t utilize it. -- Bitachon (#32)

Food is nissei nissim, it is broken up into thousands of different materials which go into the blood together in a mixture; one doesn’t spoil the other. Imagine thousands of materials traveling in the bloodstream,along tunnels, tubes to the intestines. The intestines are lined with cells that have such cunning arrangements that they only admit certain materials. All these things, you can’t enumerate them, there are so many of them, all come together in the bloodstream. – Show me Your Glory (#E176)

Avraham was in full control of everything. It says he lifted up his eyes, and he looked. Avraham’s eyes weren’t roaming around. No, Avraham’s eyes were on the sidewalk. When the time came to look at something, so he made a decision, he lifted up his eyes, but before he pressed the button to click the camera he thought it over, and if he decided it’s worth seeing, he saw. That’s how our forefathers lived. – Shemonah Esrai (#267)
 

In old Yerushalayim, they counted their words. “Reuven ben Shimon eid” — that’s how you sign documents today. They signed Reuven ben Shimon; they didn’t want to add the word eid because it’s an extra word. They were stingy with words and stingy with talking. What we say in twenty words, they said in three words.

“Le’oylom yishneh odom lutalmidov buloshon ketzoro” you should only teach Torah to your talmid in abbreviated form. Why waste words? – The Drive to Perfection (#736)