A man who has cured himself of all ridiculous prepossessions, and is fully, sincerely, and steadily convinced, from experience as well as philosophy,… - David Hume

Nature has pointed out a mixed kind of life as most suitable to the human race, and secretly admonished them to allow none of these biases to draw too much, so as to incapacitate them for other occupations and entertainments. Indulge your passion for science, says she, but let your science be human, and such as may have a direct reference to action and society. Abstruse thought and profound researches I prohibit, and will severely punish, by the pensive melancholy which they introduce, by the endless uncertainty in which they involve you, and by the cold reception which your pretended discoveries shall meet with, when communicated. Be a philosopher; but, amidst all your philosophy, be still a man.

When suicide is out of fashion we conclude that none but madmen destroy themselves; and all the efforts of courage appear chimerical to dastardly minds ... Nevertheless, how many instances are there, well attested, of men, in every other respect perfectly discreet, who, without remorse, rage, or despair, have quitted life for no other reason than because it was a burden to them, and have died with more composure than they lived?

Where men are the most sure and arrogant, they are commonly the most mistaken, and have there given reins to passion, without that proper deliberation and suspense, which can alone secure them from the grossest absurdities.