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《在广州石围塘检阅滇均的演说》(1924年4月4日)
It is India that gave us the ingenious method of expressing all numbers by means of ten symbols, each symbol receiving a value of position as well as an absolute value.
一个人是他思想的产物,他想什么,就会成为什么。
I'm not interested in the rules of perspective. I'm interested in the way we actually see.
煤炭造就了现代世界,我们有责任确保以智慧管理它的遗产。
The deepest problems in mathematics often arise from the simplest questions.