Give me matter, and I will construct a world out of it!
Beneficence is a duty; and he who frequently practices it, and sees his benevolent intentions realized comes, at length, really to love him to whom he has done good.
Metaphysics is a dark ocean without shores or lighthouse, strewn with many a philosophic wreck.
Animals... are there merely as a means to an end. That end is man.
Notion without intuition is empty, intuition without notion is blind.
Human beings are never to be treated as a means but always as ends.