Time is the most valuable thing a man can spend.

We must consider the distinctive characters and the general nature of plants from the point of view of their morphology, their behavior under external conditions, their mode of generation, and the whole course of their life.

An orator without judgment is a horse without a bridle.

The man of petty ambition if invited to dinner will be eager to be set next his host.

Ah, yes, superstition: it would appear to be cowardice in face of the supernatural

Time is the most valuable thing a man can spend