David Hume

"We ascribe a real existence to objects independent of the mind."

"Belief is more properly an act of the sensitive than of the cogitative part of our nature."

"A man may as well pretend to see without eyes as to perceive without impressions."

"The same object may be denominated both virtuous and vicious."

"Every natural production and process is easy to the Almighty."

"Violent passions should be followed by some relaxation."

"A man cannot strip himself of all properties at once."

"The imagination is inconstant and changeable."

"History is a science that raises the character of a man."

"It is strange how little wit nature has left to mankind."

"Tis not in the power of human nature to be at ease."

"The operations of external bodies are necessary to convince us of the existence of body."

"All reasoning concerning matter of fact seem to be founded on relation of cause and effect."

"Avarice, the spur of industry, is so obstinate a passion."

"Beauty is no quality in things themselves: it exists merely in the mind."

"The weakness of human nature is the source of all virtues."

"To a person dying the world assumes the aspect of a universal mourning."

"The social virtues must arise from sympathy with others."

"No individual is entirely independent; we all depend on society."

"A wise man proportions his belief to the evidence."

"The greatest refinement of justice consists in getting beyond reward and punishment."

"Nothing so stubborn and inflexible as custom."

"Freedom can have no meaning when men are enslaved to their passions."

"There is no reasoning without a process, and no process without a mind."

"The vulgar systems of ethics as well as metaphysics contain many hypotheses."

"A game of backgammon is as instructive as a week's study of metaphysics."

"The mind is a kind of theatre where many perceptions make their appearance."

"Superstition is the disease of mankind."

"All kinds of reasoning are nothing but comparisons."

"We must distinguish between moral distinctions and natural ones."