Experience keeps a dear school, but fools will learn in no other.
The simple things are also the most extraordinary things, and only the wise can see them.
Compassion is the basis of morality.
All our knowledge begins with the senses, proceeds then to the understanding, and ends with reason. There is nothing higher than reason.
All that we see or seem is but a dream within a dream.
Happiness is not an ideal of reason, but of imagination.
We thought that we had the answers, it was the questions we had wrong.
The smaller the mind, the greater the conceit.
No one can make you feel inferior without your consent.
Honesty is the first chapter in the book of wisdom.
Stubborn and ardent clinging to one's opinion is the best proof of stupidity.
You are not a drop in the ocean. You are the entire ocean, in a drop.
There are no limitations to the mind except those we acknowledge.
A man who as a physical being is always turned toward the outside, thinking that his happiness lies outside him, finally turns inward and discovers that the source is within him.
When playing board-games which involve quizzes etc, you will always know the answers to everyone else's set of questions but never your own.
Each problem that I solved became a rule which served afterwards to solve other problems.
It is always advisable to perceive clearly our ignorance.
In the practice of tolerance, one's enemy is the best teacher.
Judge not unless you judge yourself.
When I stand before God at the end of my life, I would hope that I would not have a single bit of talent left, and could say, 'I used everything you gave me'.
As our case is new, we must think and act anew.