True progress is measured not just in profits, but in the positive impact we have on society.

When I stand before thee at the day's end thou shalt see my scars and know that I had my wounds and also my healing.

信仰与看不见的事物有关，希望与不在手边的事物有关。

"The only limit to our realization of tomorrow will be our doubts of today."

What appears good to one may appear evil to another， and vice versa.

My heart is bound to beat right out my untrimmed chest.

在数学中，提出问题的艺术必须比解决问题更有价值。