Albert Einstein

The true sign of intelligence is not knowledge but imagination.

Once we accept our limits, we go beyond them.

Unthinking respect for authority is the greatest enemy of truth.

True religion is real living; living with all one's soul, with all one's goodness and righteousness.

Learn from yesterday, live for today, hope for tomorrow. The important thing is not to stop questioning.

Generations to come, it may be, will scarce believe that such a one as this, ever in flesh and blood, walked upon this earth. (On Mahatma Gandhi)

Most people say that it is the intellect which makes a great scientist. They are wrong: it is character.

A thousand things can prove me right and one can prove me wrong.

You cannot simultaneously prevent and prepare for war.

Those who have the privilege to know, have the duty to act.