The useless search of philosophers for a cause of the universe is a regressus in infinitum (a stepping backwards into the infinite) and resembles climbing up an endless ladder, the recurring question as to the cause of the cause rendering the attainment of a final goal impossible.

A creative force that either creates itself or arises from nothing, and which is a causa sui (its own cause), exactly resembles Baron Munchhausen, who drew himself out of the bog by taking hold of his own hair.

We are sorry to confess that biological hypotheses have not yet completely got out of the second phase, and that ghost of ‘vital force’ still haunts many wise heads.

What we still designate as chance, merely depends on a concatenation of circumstances, the internal connection and final causes of which we have as yet been unable to unravel.

For the thinker the world is a thought; for the wit, an image; for the enthusiast, a dream; for the inquirer, truth.

Ohne Phosphor, Kein Gedanke. Without phosphorus there would be no thoughts.

Death is the surest calculation that can be made.