Happiness is not an ideal of reason, but of imagination.

It is not God's will merely that we should be happy, but that we should make ourselves happy

Animals... are there merely as a means to an end. That end is man.

Nothing is divine but what is agreeable to reason.

It is therefore correct to say that the senses do not err — not because they always judge rightly, but because they do not judge at all.

Both love of mankind, and respect for their rights are duties; the former however is only a conditional, the latter an unconditional, purely imperative duty, which he must be perfectly certain not to have transgressed who would give himself up to the secret emotions arising from benevolence.

Beneficence is a duty.