To be misunderstood even by those whom one loves is the cross and bitterness of life. It is the secret of that sad and melancholy smile on the lips of great men which so few understand.

I am a spectator, so to speak, of the molecular whirlwind which men call individual life; I am conscious of an incessant metamorphosis, an irresistible movement of existence, which is going on within me - and this phenomenology of myself serves as a window opened upon the mystery of the world.

Every situation is an equilibrium of forces; every life is a struggle between opposing forces working within the limits of a certain equilibrium

Our dependence outweighs our independence, for we are independent only in our desire, while we are dependent on our health, on nature, on society, on everything in us and outside us.

It is work which gives flavor to life.

Analysis kills spontaneity.

To know how to suggest is the great art of teaching. To attain it we must be able to guess what will interest; we must learn to read the childish soul as we might a piece of music. Then, by simply changing the key, we keep up the attraction and vary the song.