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.
The deepest problems in mathematics often arise from the simplest questions.
Limiting beliefs are the prisons of the mind, and learning is the key to freedom.
成功不是终点,失败也不是致命的:重要的是继续前进的勇气。
If I have seen further it is by standing on the shoulders of Giants.