Love is the most universal, the most tremendous and the most mysterious of the cosmic forces.

The past has revealed to me the structure of the future.

Is evolution a theory, a system, or a hypothesis? It is much more it is a general postulate to which all theories, all hypotheses, all systems must henceforward bow and which they must satisfy in order to be thinkable and true. Evolution is a light which illuminates all facts, a trajectory which all lines of thought must follow this is what evolution is.

He that will believe only what he can fully comprehend must have a long head or a very short creed.

The only way forward is in the direction of a common passion, for nothing in the universe can ultimately resist the cumulative ardor of the collective soul.

Love alone is capable of uniting living beings in such a way as to complete and fulfill them, for it alone takes them and joins them by what is deepest in themselves.

We have only to believe. And the more threatening and irreducible reality appears, the more firmly and desperately we must believe. Then, little by little, we shall see the universal horror unbend, and then smile upon us, and then take us in its more than human arms.