We only really know what is new, what suddenly introduces to our sensibility a change of tone which strikes us, that for which habit has not yet substituted its pale fac-similes.

In theory one is aware that the earth revolves, but in practice one does not perceive it, the ground upon which one treads seems not to move, and one can live undisturbed. So it is with Time in one's life.

To achieve accurate knowledge of others, if such a thing were possible, we could only ever arrive at it through the slow and unsure recognition of our own initial optical inaccuracies. However, such knowledge is not possible: for, while our vision of others is being adjusted, they, who are not made of mere brute matter, are also changing; we think we have managed to see them more clearly, but they shift; and when we believe we have them fully in focus, it is merely our older images of them that we have clarified, but which are themselves already out of date.

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.

Reading is at the threshold of spiritual life; it can introduce us to it; it does not constitute it. There are, however, certain cases, certain pathological cases, so to speak, of spiritual depression in which reading can become a sort of curative discipline and assume the task, through repeated stimulation, of continuously reintroducing a lazy mind into the life of the spirit.

... in love, barriers cannot be destroyed from the outside by the one to whom the cause despair, no matter what he does; and it isonly when he is no longer concerned with them that, suddenly, as a result of work coming from elsewhere, accomplished within the one who did not love him, these barriers, formerly attacked without success, fall futilely.

Indeed, among the lesser auxiliaries to success in love, an absence, the declining of an invitation to dinner, an unintentional, unconscious harshness are of more service than all the cosmetics and fine clothes in the world.