The decline of literature indicates the decline of a nation.

Thank God when He lays a burden on thee, and thank Him when He takes it off.

The day is of infinite length for him who knows how to appreciate and use it.

The Primal Plant is going be the strangest creature in the world, which Nature herself must envy me. With this model and the key to it, it will be possible to go on for ever inventing plants and know that their existence is logical; that is to say, if they do not actually exist, they could, for they are not the shadowy phantoms of a vain imagination, but possess an inner necessity and truth. The same law will be applicable to all other living organisms.

Man errs, till he has ceased to strive.

Stones are mute teachers; they silence the observer, and the most valuable lesson we learn from them we cannot communicate.

The style of an author is a faithful copy of his mind.