Our intellect is not the most subtle, the most powerful, the most appropriate, instrument for revealing the truth. It is life that, little by little, example by example, permits us to see that what is most important to our heart, or to our mind, is learned not by reasoning but through other agencies. Then it is that the intellect, observing their superiority, abdicates its control to them upon reasoned grounds and agrees to become their collaborator and lackey.

We are less justified in saying that the thinking life of humanity is a miraculous perfectioning of animal and physical life than that it is an imperfection in the organization of spiritual life as rudimentary as the communal existence of protozoa in colonies.

Like everybody who is not in love, he thought one chose the person to be loved after endless deliberations and on the basis of particular qualities or advantages.

After a certain age our memories are so intertwined with one another that what we are thinking of, the book we are reading, scarcely matters any more. We have put something of ourselves everywhere, everything is fertile, everything is dangerous, and we can make discoveries no less precious than in Pascal's Pensées in an advertisement for soap.

It is desire that engenders belief and if we fail as a rule to take this into account, it is because most of the desires that create beliefs end only with our own life.

I was left alone there in the company of the orchids, roses and violets, which, like people waiting beside you who do not know you, preserved a silence which their individuality as living things made all the more striking, and warmed themselves in the heat of a glowing coal fire.

But sometimes illumination comes to our rescue at the very moment when all seems lost; we have knocked at every door and they open on nothing until, at last, we stumble unconsciously against the only one through which we can enter the kingdom we have sought in vain a hundred years - and it opens.