Never argue with an idiot. They drag you down to their level and then beat you with experience.

The smaller the mind, the greater the conceit.

Wrong life cannot be lived rightly.

Jealousy is the tribute mediocrity pays to genius.

Nothing is as easy as it looks.

A single lie destroys a whole reputation of integrity.

It is man that makes truth great, not truth that makes man great.

Science is organized knowledge. Wisdom is organized life.

Accuracy is the twin brother of honesty; inaccuracy, of dishonesty.

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

Science has not yet taught us if madness is or is not the sublimity of the intelligence.

Without courage, wisdom bears no fruit.

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

I dream. Sometimes I think that's the only right thing to do.

Unfortunately, the clock is ticking, the hours are going by. The past increases, the future recedes. Possibilities decreasing, regrets mounting.

He who is slowest in making a promise is most faithful in its performance.

All imperfection is easier to tolerate if served up in small doses.

The only real mistake is the one from which we learn nothing.

Don't expect to build up the weak by pulling down the strong.

Don't criticize what you can't understand.

Convictions are more dangerous enemies of truth than lies.