My definition [of a philosopher] is of a man up in a balloon, with his family and friends holding the ropes which confine him to earth and trying to haul him down. – Louisa May Alcott, in Life, Letters, and Journals, ed. E.D. Cheney, 1889
Upon the whole, I am inclined to think that the far greater part, if not all, of those difficulties which have hitherto amused philosophers, and blocked up the way to knowledge, are entirely owing to our selves. That we have first raised a dust, and then complain, we cannot see. – George Berkeley