释义：一生中不做让自己皱眉头的坏事，这样世上就不会有恨你入骨的人。
老师声称代数是完美而自然的、我们应无条件地接受它，而我甚至不能理解什么是数。对我来说数学课完全就是恐怖和折磨。我完全不理解代数，这使我胆怯得不敢问任何问题。
The role of the artist is to ask questions, not to give answers.
The intellectually sophisticated person is indifferent to all genuine individuality, because relationships and reactions result from it which cannot be exhausted with logical operations.
The elements of mind are to be discovered by systematic introspection.
