The world is round so that friendship may encircle it.

To love is to approach each other center to center.

In the final analysis, the questions of why bad things happen to good people transmutes itself into some very different questions, no longer asking why something happened, but asking how we will respond, what we intend to do now that it happened.

The zest for life, which is the source of all passion and all insight, even divine, does not come to us from ourselves.... It is God who has to give us the impulse of wanting him.

Isolation is a blind alley....Nothing on the planet grows except by convergence.

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.

The machine not only does it relieve us mechanically of a crushing weight of physical and mental labor; but by the miraculous enhancing of our senses, through its powers of enlargement, penetration and exact measurement, it constantly increases the scope and clarity of our perceptions. It fulfills the dream of all living creatures by satisfying our instinctive craving for the maximum of consciousness with a minimum of effort! Having embarked upon so profitable a path, how can Mankind fail to pursue it?