We must admit with humility that, while number is purely a product of our minds, space has a reality outside our minds, so that we cannot completely prescribe its properties a priori. Letter to Bessel, 1830. The Mind and the Eye 1954. Few, but ripe. W Shakespeare King Lear .
Theory attracts practice as the magnet attracts iron.
It is not knowledge, but the act of learning, not possession but theact of getting there, which grants the greatest enjoyment. I imagine the world conqueror must feel thus, who, after one kingdom is scarcely conquered, stretches out his arms for others. Letter to Bolyai, 1808. Finally, two days ago, I succeeded - not on account of my hard efforts,but by the grace of the Lord. Like a sudden flash of lightning, the riddle was solved.