Men will not understand ... that when they fulfil their duties to men, they fulfil thereby God's commandments; that they are consequently always in the service of God, as long as their actions are moral, and that it is absolutely impossible to serve God otherwise.

cruelty to animals is contrary to man's duty to himself, because it deadens in him the feeling of sympathy for their sufferings, and thus a natural tendency that is very useful to morality in relation to other human beings is weakened.

Procrastination is hardly more evil than grasping impatience.

An organized product of nature is that in which all the parts are mutually ends and means.

All false art, all vain wisdom, lasts its time but finally destroys itself, and its highest culture is also the epoch of its decay.

Two things strike me dumb: the infinite starry heavens, and the sense of right and wrong in man.

Nature, when left to universal laws, tends to produce regularity out of chaos.