Nature is always too strong for principle. - David Hume

Reason is, and ought only to be the slave of the passions, and can never pretend to any other office than to serve and obey them.
…'Tis not contrary to reason to prefer the destruction of the whole world to the scratching of my finger.

If the material world rests upon a similar ideal world, this ideal world must rest upon some other; and so on, without end. It were better, therefore, never to look beyond the present material world. By supposing it to contain the principle of its order within itself, we really assert it to be God; and the sooner we arrive at that Divine Being, so much the better. When you go one step beyond the mundane system, you only excite an inquisitive humour which it is impossible ever to satisfy.

Indulge your passion for science…but let your science be human, and such as may have a direct reference to action and society. Be a philosopher; but amidst all your philosophy, be still a man.