It is perhaps the misfortune of my life that I am interested in far too much but not decisively in any one thing; all my interests are not subordinated in one but stand on an equal footing.

In my great melancholy, I loved life, for I love my melancholy.

The paradox is really the pathos of intellectual life and just as only great souls are exposed to passions it is only the great thinker who is exposed to what I call paradoxes, which are nothing else than grandiose thoughts in embryo.

It is very dangerous to go into eternity with possibilities which one has oneself prevented from becoming realities. A possibility is a hint from God. One must follow it.

The extreme rarity of transitional forms in the fossil record persists as the trade secret of paleontology.

Spiritual superiority only sees the individual. But alas, ordinarily we human beings are sensual and, therefore, as soon as it is a gathering, the impression changes - we see something abstract, the crowd, and we become different. But in the eyes of God, the infinite spirit, all the millions that have lived and now live do not make a crowd, He only sees each individual.

The present state of the world and the whole of life is diseased. If I were a doctor and were asked for my advice, I should reply, 'Create silence'.