The universe, as we see it, is the result of regularly working forces, having a causal connection with each other and therefore capable of being understood by human reason.

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.

Death is the surest calculation that can be made.

The universe, as we see it, is the result of regularly working forces, having a causal connection with each other and therefore capable of being understood by human reason.

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

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.