Just remember, once you're over the hill you begin to pick up speed.

Whatever you think the world is withholding from you, you are withholding from the world.

Share our similarities, celebrate our differences.

True knowledge lies in knowing how to live.

Don't take tomorrow to bed with you.

Whatever the mind of man creates, should be controlled by man's character

Above all be of single aim; have a legitimate and useful purpose, and devote yourself unreservedly to it.

To be wronged is nothing unless you continue to remember it.

Admiration is the daughter of ignorance.

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

The ultimate authority must always rest with the individual's own reason and critical analysis.

It is easy to be brave at a safe distance.

You always admire what you really don't understand.

Anywhere you go in the world is what you make of it, not what you read in books.

There is no question climate change is happening. The only arguable point is what part humans are playing in it.

Nobody has the power to take two steps together; you can take only one step at a time.

Intellectuals solve problems, geniuses prevent them.

The road of excess leads to the palace of wisdom.

We are all born ignorant, but one must work hard to remain stupid

Our society is run by insane people for insane objectives.

All that we see or seem is but a dream within a dream.