An intelligent hell would be better than a stupid paradise.
Promises are like crying babies in a theater, they should be carried out at once.
Not everything that can be counted counts, and not everything that counts can be counted.
I think, therefore I am.
Every aquarium will eventually leak.
The trouble with most of us is that we would rather be ruined by praise than saved by criticism.
Accuracy is the twin brother of honesty; inaccuracy, of dishonesty.
Yesterday I was clever, so I wanted to change the world. Today I am wise, so I am changing myself.
Medicine heals diseases of the body, wisdom frees the soul from passions.
Intellectuals solve problems, geniuses prevent them.
If you don't stand for something you will fall for anything.
Wisdom begins at the end.
A house divided against itself cannot stand.
Why fit in when you were born to stand out?
If you only read the books that everyone else is reading, you can only think what everyone else is thinking.
Time flies over us, but leaves its shadow behind.
I hear and I forget. I see and I remember. I do and I understand.
Learning and wisdom are superfluities, the surface glitter merely, but it is the heart that is the seat of all power.
I don't like definitions, but if there is a definition of freedom, it would be when you have control over your reality to transform it, to change it, rather than having it imposed upon you. You can't really ask for more than that.
It is divinity that shapes, not only your ends, but also your acts, your words and thoughts.
Do not reveal what you have thought upon doing, but by wise council keep it secret being determined to carry it into execution.