Everything we hear is an opinion, not a fact. Everything we see is a perspective, not the truth.

What's real and what's true aren't necessarily the same.

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

There is nothing more uncommon than common sense.

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

Half the world is composed of people who have something to say and can't, and the other half who have nothing to say and keep on saying it.

Nothing is more intolerable than to have to admit to yourself your own errors.

Medicine heals diseases of the body, wisdom frees the soul from passions.

When I stand before God at the end of my life, I would hope that I would not have a single bit of talent left, and could say, 'I used everything you gave me'.

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

It seems essential, in relationships and all tasks, that we concentrate only on what is most significant and important.

All great achievements require time.

Why fit in when you were born to stand out?

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

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

Criticize the act, not the person.

What's done can't be undone.

Respect yourself if you would have others respect you.

Boredom is the root of all evil - the despairing refusal to be oneself.

Talent is God given. Be humble. Fame is man-given. Be grateful. Conceit is self-given. Be careful.

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