... mathematics is absolutely necessary and useful to the other sciences.

Knowledge of languages is the doorway to wisdom.

Cease to be ruled by dogmas and authorities; look at the world!

It is easier for a man to burn down his own house than to get rid of his prejudices.

The strongest arguments prove nothing so long as the conclusions are not verified by experience. Experimental science is the queen of sciences and the goal of all speculation.

To ask the proper question is half of knowing.

Argument is conclusive, but it does not remove doubt.

A man is crazy who writes a secret in any other way than one which will conceal it from the vulgar.

Mathematics is the gate and key to science.

A little learning is a dangerous thing but none at all is fatal.

The conquest of learning is achieved through the knowledge of languages.

If I advance follow me! If I retreat kill me! If I die avenge me!

Success didn't spoil me, I've always been insufferable.

Talent sets the floor, character sets the ceiling

If I can lead a happy life, touch the lives of others in a positive way, win the respect of those that I care about... and make a few million along the way, then I have been successful.

I carried my Oscar to bed with me. My first and only three-way happened that night.

I've said it in the past and I'll say it again today: the vote is precious; it's almost sacred.

Individual liberty, the basic underpinning of American society, requires constant defense against the encroachment of the state.

Meditation creates more time than it takes.

I have a friend whose theory is that you're from wherever you went to high school. I think that's mostly true.

For we put the power in the people.