Every great advance in natural knowledge has involved the absolute rejection of authority.

The great tragedy of science - the slaying of a beautiful hypothesis by an ugly fact.

Only one absolute certainty is possible to man, namely that at any given moment the feeling which he has exists.

The Bible has been the Magna Charta of the poor and of the oppressed.

If a little knowledge is dangerous, where is the man who has so much as to be out of danger?

It is not who is right, but what is right, that is of importance.

Thoughtfulness for others, generosity, modesty, and self-respect are the qualities which make a real gentleman or lady.

God give me strength to face a fact though it slay me.

Life is too short to occupy oneself with the slaying of the slain more than once.

The secret of genius is to carry the spirit of childhood into maturity.

Make up your mind to act decidedly and take the consequences. No good is ever done in this world by hesitation.

Wealth is the slave of a wise man. The master of a fool

It's difficult for me to meet women because my crowd is much older. I know that for some of the young women I do meet, a relationship with me can be envisioned as a benefit to their career.

It would be an exaggeration to say I’m not afraid of death, but I’m not afraid of what comes after, because I’m not a believer.

Twitter's popularity and usefulness are mysteries to me.

You never see a smiling runner.

Sometimes I try to improve the language, the lines, or the delivery, but I don't ad-lib because I think that makes it really hard for everybody else involved.

The funding of mobile first companies will increase significantly.

She was scared. Scared of dying.

Nature turns all malfaisance to good.

What doesn't feel okay to me, what feels a little bit out of balance, is when you want to turn yourself into something else - when you want to be another person.