The science of mathematics presents the most brilliant example of how pure reason may successfully enlarge its domain without the aid of experience

Science is organized knowledge. Wisdom is organized life

It is beyond a doubt that all our knowledge begins with experience.

Rules for Happiness: something to do, someone to love, something to hope for.

We can judge the heart of a man by his treatment of animals.

Two things fill the mind with ever new and increasing admiration and awe, the oftener and more steadily we reflect on them: the starry heavens above me and the moral law within me.

Always recognize that human individuals are ends, and do not use them as means to your end.

Three things tell a man: his eyes, his friends and his favorite quotes

You only know me as you see me, not as I actually am

The greatest human quest is to know what one must do in order to become a human being.

All our knowledge begins with the senses, proceeds then to the understanding, and ends with reason. There is nothing higher than reason.

The great difficulty in education is to get experience out of ideas.

When I'm around the kids I feel like I act the most grown-up just because you're supposed to. And I say things, like every other day, that remind me of my own parents.

He who has wealth has friends.

There's nothing more precious in this world than the feeling of being wanted.

You know nothing, Jon Snow

All men recognize the right of revolution; that is, the right to refuse allegiance to, and to resist, the government, when its tyranny or its inefficiency are great and unendurable.

Holding unconventional opinions makes people feel they have strong characters.

Once you get a brother, you don’t give him up easy.

Few people can see genius in someone who has offended them.

I read a lot of books for information, like doctor books, spy books. . . .