One dupe is as impossible as one twin.

Toil, feel, think, hope; you will be sure to dream enough before you die, without arranging for it.

Pain has its own noble joy, when it starts a strong consciousness of life, from a stagnant one.

Poetry is in itself strength and joy, whether it be crowned by all mankind, or left alone in its own magic hermitage.

Man is a substance clad in shadows.

An unproductive truth is none. But there are products which cannot be weighed even in patent scales, nor brought to market.

Be busy in trading, receiving, and giving, for life is too good to be wasted in living.