Stubborn and ardent clinging to one's opinion is the best proof of stupidity.
Wrong life cannot be lived rightly.
Experience keeps a dear school, but fools will learn in no other.
Take care of the pieces well. The whole will take care of itself.
Don't take tomorrow to bed with you.
Wisdom is not the product of schooling, but of the lifelong attempt to acquire it.
If we can really understand the problem, the answer will come out of it, because the answer is not separate from the problem.
No man has any natural authority over his fellow men.
If you only read the books that everyone else is reading, you can only think what everyone else is thinking.
Nothing is as easy as it looks.
A house divided against itself cannot stand.
How often it is that the angry man rages denial of what his inner self is telling him.
Convictions are more dangerous enemies of truth than lies.
Fear doesn't exist anywhere except in the mind.
And no one will listen to us until we listen to ourselves.
The secret of life, though, is to fall seven times and to get up eight times.
In any moment of decision, the best thing you can do is the right thing. The worst thing you can do is nothing.
The only limit to our realization of tomorrow will be our doubts of today.
It was a melancholy secret that reality can arouse desires but never satisfy them.
There are two educations. One should teach us how to make a living and the other how to live.
He who chooses the beginning of the road chooses the place it leads to.