As long as men are free to ask what they must, free to say what they think, free to think what they will, freedom can never be lost and science can never regress.
Habit is a second nature which prevents us from knowing the first, of which it has neither the cruelties nor the enchantments.
Three-quarters of the sicknesses of intelligent people come from their intelligence. They need at least a doctor who can understand this sickness.
Illness is the doctor to whom we pay most heed to kindness, to knowledge, we make promise only pain we obey.
It is in moments of illness that we are compelled to recognize that we live not alone but chained to a creature of a different kingdom, whole worlds apart, who has no knowledge of us and by whom it is impossible to make ourselves understood: our body.
Everything great in the world comes from neurotics. They alone have founded our religions and composed our masterpieces.
Let us be grateful to people who make us happy, they are the charming gardeners who make our souls blossom.
Words do not change their meanings so drastically in the course of centuries as, in our minds, names do in the course of a year or two.