Available energy is the main object at stake in the struggle for existence and the evolution of the world.

It must be splendid to command millions of people in great national ventures, to lead a hundred thousand to victory in battle. But it seems to me greater still to discover fundamental truths in a very modest room with very modest means - truths that will still be foundations of human knowledge when the memory of these battles is painstakingly preserved only in the archives of the historian.

Which is more remarkable fact about America: that millionaires are idealists or idealists become millionaires.

Philosophy gets on my nerves. If we analyze the ultimate ground of everything, then everything finally falls into nothingness. But I have decided to resume my lectures again and look the Hydra of doubt straight into the eye, and it be quite ominous if one values one's life.

The life contest is primarily a competition for available energy.

Bring forward what is true, Write it so that it is clear, Defend it to your last breath!

In my view all salvation for philosophy may be expected to come from Darwin's theory