Don't raise your voice, improve your argument.

Intelligence is the ability to adapt to change.

The simple things are also the most extraordinary things, and only the wise can see them.

Attitude, not Aptitude, determines Altitude.

Wise men speak because they have something to say; Fools because they have to say something.

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

It is not enough to have a good mind; the main thing is to use it well.

Men build too many walls and not enough bridges.

You cannot truly listen to anyone and do anything else at the same time.

Our virtues and our failings are inseparable, like force and matter. When they separate, man is no more

There are things known and there are things unknown, and in between are the doors of perception.

Yes, I guess you could say I am a loner, but I feel more lonely in a crowed room with boring people than I feel on my own.

Having a great intellect is no path to being happy.

Creativity is the process of having original ideas that have value.

It is the mark of an educated mind to be able to entertain a thought without accepting it.

Man is the only creature who refuses to be what he is.

Not everything that can be counted counts, and not everything that counts can be counted.

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

Almost every wise saying has an opposite one, no less wise, to balance it.

The best revenge is to be unlike him who performed the injury.

I've learned that people will forget what you said, people will forget what you did, but people will never forget how you made them feel.