The road of excess leads to the palace of wisdom.
Science is organized knowledge. Wisdom is organized life.
It is not titles that honor men, but men that honor titles.
Each problem that I solved became a rule which served afterwards to solve other problems.
A friend to all is a friend to none
Man's sensitivity to the little things and insensitivity to the greatest are the signs of a strange disorder.
What you're thinking is what you're becoming.
If I speak of myself in different ways, that is because I look at myself in different ways.
Learned we may be with another man's learning: we can only be wise with wisdom of our own.
The cure for pain is in the pain.
Nothing fixes a thing so intensely in the memory as the wish to forget it.
A perfection of means, and confusion of aims, seems to be our main problem.
If you are neutral in situations of injustice, you have chosen the side of the oppressor.
Most of what matters in our lives takes place in our absence.
If you're happy, don't worry you'll get over it.
To avoid criticism say nothing, do nothing, be nothing.
No one can make you feel inferior without your consent.
If you don't stand for something you will fall for anything.
Power always thinks it has a great soul and vast views beyond the comprehension of the weak.
There is a wisdom of the head, and... there is a wisdom of the heart.
A good teacher protects his pupils from his own influence.