If you don't want to slip up tomorrow, speak the truth today.

The greatest pride, or the greatest despondency, is the greatest ignorance of one's self.

Today you are you! That is truer than true! There is no one alive who is you-er than you!

Whenever you find yourself on the side of the majority, it is time to pause and reflect.

I have had good experience and trial of this world...I know what it is to be a subject, what to be a sovereign, what to have good neighbours, and sometimes meet evil willers. I have found treason in trust, seen great benefits little regarded.

Let him who would move the world first move himself.

Intellectuals solve problems, geniuses prevent them.

Those who can not change their minds can not change anything.

The most courageous act is still to think for yourself. Aloud.

A scholar who cherishes the love of comfort is not fit to be deemed a scholar.

When you judge another, you do not define them, you define yourself.

Science has not yet taught us if madness is or is not the sublimity of the intelligence.

Property is surely a right of mankind as real as liberty.

What lies behind us and what lies ahead of us are tiny matters compared to what lives within us.

Adapt what is useful, reject what is useless, and add what is specifically your own.

One new feature or fresh take can change everything.

Although our intellect always longs for clarity and certainty, our nature often finds uncertainty fascinating.

What can't be cured must be endured.

Love make us poets, and the approach of death should make us philosophers.

We must live together as brothers or perish together as fools.

I think, therefore I am.