Evil is merely privative, not absolute: it is like cold, which is the privation of beat.

The law of nature is alternation for evermore. Each electrical state superinduces the opposite.

Activity is contagious.

Only to youth will spring be spring.

Good nature is stronger than tomahawks.

There is this to be said in favor of drinking, that it takes the drunkard first out of society, then out of the world.

It is, in both cases, that a spiritual life has been imparted to nature; that the solid seeming block of matter has been pervadedand dissolved by a thought; that this feeble human being has penetrated the vast masses of nature with an informing soul, and recognised itself in their harmony, that is, seized their law. In physics, when this is attained, the memory disburthens itself of its cumbrous catalogues of particulars, and carries centuries of observation in a single formula.