领导力是关于以清晰和信念做出艰难的决定。
Leadership is about making tough decisions with clarity and conviction.
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.
学习数学的唯一方法就是做数学。
合作是关键，没有一家伟大的企业是独自成功的。