Animals learn death first at the moment of death;...man approaches death with the knowledge it is closer every hour, and this creates a feeling of uncertainty over his life, even for him who forgets in the business of life that annihilation is awaiting him. It is for this reason chiefly that we have philosophy and religion.

What a man is contributes much more to his happiness than what he has or how he is regarded by others.

There is one respect in which beasts show real wisdom... their quiet, placid enjoyment of the present moment.

It is a wise thing to be polite; consequently, it is a stupid thing to be rude. To make enemies by unnecessary and willful incivility, is just as insane a proceeding as to set your house on fire. For politeness is like a counter--an avowedly false coin, with which it is foolish to be stingy.

The doctor sees all the weakness of mankind; the lawyer all the wickedness, the theologian all the stupidity.

Animals hear about death for the first time when they die.

That which knows all things and is known by none is the subject.