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.
Desire is the very essence of man.
The first method for estimating the intelligence of a ruler is to look at the men he has around him.
In order to change the world, you have to get your head together first
Above all be of single aim; have a legitimate and useful purpose, and devote yourself unreservedly to it.
Science has not yet taught us if madness is or is not the sublimity of the intelligence.
The greatest minds are capable of the greatest vices as well as of the greatest virtues.
Don't criticize what you don't understand, son. You never walked in that man's shoes.
Every aquarium will eventually leak.
Energy may be likened to the bending of a crossbow; decision,to the releasing of a trigger.
Do not deny the classical approach, simply as a reaction, or you will have created another pattern and trapped yourself there.
I dream. Sometimes I think that's the only right thing to do.
The heart has its reasons which reason knows not.
An intelligent hell would be better than a stupid paradise.
The boundaries which divide Life from Death are at best shadowy and vague. Who shall say where the one ends, and where the other begins?
When you learn, teach, when you get, give.
Courage is resistance to fear, mastery of fear - not absence of fear.
If we know exactly where we're going, exactly how to get there, and exactly what we'll see along the way, we won't learn anything.
The ultimate authority must always rest with the individual's own reason and critical analysis.
By three methods we may learn wisdom: first, by reflection which is noblest; second, by imitation, which is the easiest; and third, by experience, which is the bitterest.
We seldom realize, for example that our most private thoughts and emotions are not actually our own. For we think in terms of languages and images which we did not invent, but which were given to us by our society.