If we don't believe in freedom of expression for people we despise, we don't believe in it at all.

Most of what matters in our lives takes place in our absence.

Great dreams of great dreamers are always transcended.

Those who know, do. Those that understand, teach.

It is not the strength, but the duration, of great sentiments that makes great men.

Only idiots refuse to change their minds.

Throw your heart over the fence and the rest will follow.

It's not a question of learning much.On the contrary.It's a question of UNLEARNING much.

Love one another, but make not a bond of love: Let it rather be a moving sea between the shores of your souls.

Wrong life cannot be lived rightly.

Convictions are more dangerous enemies of truth than lies.

The pendulum of the mind oscillates between sense and nonsense, not between right and wrong.

No act of kindness, no matter how small, is ever wasted.

To me, being an intellectual doesn't mean knowing about intellectual issues; it means taking pleasure in them.

Most of us have far more courage than we ever dreamed possible

An understanding of the natural world is a source of not only great curiosity, but great fulfilment.

I wanted to change the world. But I have found that the only thing one can be sure of changing is oneself.

All the great things are simple, and many can be expressed in a single word: freedom; justice; honor; duty; mercy; hope.

If you only read the books that everyone else is reading, you can only think what everyone else is thinking.

Experience keeps a dear school, but fools will learn in no other.

Tomorrow hopes we have learned something from yesterday.