Be a philosopher, but amid all your philosophy be still a man. - 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.

Heaven and Hell suppose two distinct species of men,
the Good and the Bad.

But the greatest part of mankind float betwixt vice and virtue.

Should a traveler, returning from a far country, bring us an account of men wholly different from any with whom we were ever acquainted, men who were entirely divested of avarice, ambition, or revenge, who knew no pleasure but friendship, generosity, and public spirit, we should immediately, from these circumstances, detect the falsehood and prove him a liar with the same certainty as if he had stuffed his narration with stories of centaurs and dragons, miracles and prodigies.