If we don't believe in freedom of expression for people we despise, we don't believe in it at all.
Good advice is always certain to be ignored, but that's no reason not to give it.
Only idiots refuse to change their minds.
Language is very powerful. Language does not just describe reality. Language creates the reality it describes.
Knowledge speaks, but wisdom listens
Do not reveal what you have thought upon doing, but by wise council keep it secret being determined to carry it into execution.
Tomorrow hopes we have learned something from yesterday.
The simple things are also the most extraordinary things, and only the wise can see them.
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self.
A wise man can learn more from a foolish question than a fool can learn from a wise answer.
Don't take tomorrow to bed with you.
Where there is anger, there is always pain underneath.
An understanding of the natural world is a source of not only great curiosity, but great fulfilment.
I don't know, I don't care, and it doesn't make any difference.
One of the truest tests of integrity is its blunt refusal to be compromised.
Honesty is the first chapter in the book of wisdom.
Intelligence is the ability to adapt to change.
Man's sensitivity to the little things and insensitivity to the greatest are the signs of a strange disorder.
Everything we hear is an opinion, not a fact. Everything we see is a perspective, not the truth.
Talent is God given. Be humble. Fame is man-given. Be grateful. Conceit is self-given. Be careful.
The ultimate authority must always rest with the individual's own reason and critical analysis.