The wise reflect on their thoughts; the foolish indulge in their indulgences.

Every child should have mud pies, grasshoppers, water bugs, tadpoles, frogs, mud turtles, elderberries, wild strawberries, acorns, chestnuts, trees to climb, brooks to wade in, water lilies, woodchucks, bats, bees, butterflies, various animals to pet, hayfields, pine-cones, rocks to roll, sand, snakes, huckleberries and hornets; and any child who has been deprived of these has been deprived of the best part of education.

创造力是允许自己犯错。艺术是知道该保留哪些错误。

Every algorithm tells a story, not just of its own steps, but of the problem it seeks to solve.