陈述是传达信息的手段，承诺是作出承诺的手段。
A statement is a means to convey information， a promise is a means to make a commitment.
The journey of scientific discovery is as important as the destination.
Quality is not an act, it is a habit.
The history of life is written in A, T, C, and G.
The Langlands program is a bridge between the discrete and the continuous.