“What we agree with leaves us inactive, but contradiction makes us productive.”

“It's true that nothing in this world makes us so necessary to others as the affection we have for them.”

“Age does not make us childish, as some say; it finds us true children.”

“We must note the curious fact that people are not content with what is simple to understand, but go straight for the more complex problems which they will perhaps never grasp. What is simple to grasp is quite usable and useful, and can keep us occupied for a whole lifetime if it satisfies and stimulates us.”

“It is not given to us to grasp the truth, which is identical with the divine, directly. We perceive it only in reflection, in example and symbol, in singular and related appearances. It meets us as a kind of life which is incomprehensible to us, and yet we cannot free ourselves from the desire to comprehend it.”

“It's irrelevant whether what one says is true or false: both will be contradicted.”

“That is the true season of love, when we believe that we alone can love, that no one could ever have loved so before us, and that no one will love in the same way as us.”