数学不是一项观赏性运动;要理解它,必须积极参与其中。
The bond market is the ultimate predictor of market trends.
"Life itself is the most wonderful fairy tale."
写作的行为是一种乐观的行为。如果你觉得它不重要,你就不会费心去做。
The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.