In the Life of Darwin by his son, there is related an incident of how the great naturalist once studied long as to just what a certain spore was. Finally he said, “It is this, for if it isn’t, then what is it?” And all during his life he was never able to forget that he had been guilty of this unscientific attitude, for science is founded on certitude, not assumption.

Relationship is the mirror in which you discover yourself – to be is to be related

Man and animals are in reality vehicles and conduits of food, tombs of animals, hostels of Death, coverings that consume, deriving life by the death of others.

Beyond a doubt truth bears the same relation to falsehood as light to darkness.

Study the Art of Science, study the Science of Art. Develop your senses, especially learn how to see, realize that everything connects to everything else.

Vision without execution is hallucination. .. Skill without imagination is barren. Leonardo [da Vinci] knew how to marry observation and imagination, which made him history’s consummate innovator.

While I thought that I was learning how to live, I have been learning how to die.

The happiness of men consists in life. And life is in labor.

Only people who are capable of loving strongly can also suffer great sorrow, but this same necessity of loving serves to counteract their grief and heals them.