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解释:货卖完了才知道不足,是由于不懂得计量;事情结束了才知道有余,是由于不懂得调节。
在数学中,你不理解事物。你只是习惯了它们。
可持续发展不再是可选项,而是任何负责任的采矿业务的必要条件。
"Life is really simple, but we insist on making it complicated."
The revolution is made through human beings, but individuals must forge their revolutionary spirit day by day.
科学是一种探索和理解世界的方式。
The line between madness and genius is drawn by those who fear both.