唯一行为理智的人是我的裁缝，他每次见我都会重新量尺寸，而其他人则继续用旧的尺寸。

"I write to make the invisible visible."

Mental phenomena are best understood in terms of their functions.

There'll always be serendipity involved in discovery.

The future is not a result of choices among alternative paths offered by the present, but a place that is created—created first in the mind and will, created next in activity.

能量守恒定律是经验结果的概括。