Happiness doesn't come wihout pain
The most spiritual men, as the strongest, find their happiness where others would find their destruction: in the labyrinth, in hardness against themselves and others, in experiments. Their joy is self-conquest: asceticism becomes in them nature, need, and instinct. Difficult tasks are a privilege to them; to play with burdens that crush others, a recreation. Knowledge–a form of asceticism. They are the most venerable kind of man: that does not preclude their being the most cheerful and the kindliest.
The search for something permanent is one of the deepest of the instincts leading men to philosophy. It is derived, no doubt, from love of home and desire for a refuge from danger (...) Philosophers have sought with great persistence, for something not subject to the empire of time.
We get into the habit of living before acquiring the habit of thinking.
"You might as well ask if it's natural to do up one's trousers with zippers," said the Controller sarcastically.
"You remind me of another of those old fellows called Bradley. He defined philosophy as the finding of bad reason for what one believes by instinct. As if one believed anything by instinct! One believes things because one has been conditioned to believe them. Finding bad reasons for what one believes for other bad reasons–that's philosophy. People believe in God because they've been conditioned to.
Be the change that you want to see in the world.
Attention is the rarest and purest form of generosity... It is, in short, the subject of the history of the Grail. Only a predestined being has the ability to ask another: what is your torment? And he doesn't have it when he enters life. He has to go through years of dark night.
Source: Letter to the poet Joë Bousquet, 1942