The weight of history is unbearable, yet we must carry it.
"The past is a burden we carry with us, shaping our present and future in ways we cannot always understand."
The best and most beautiful things in the world cannot be seen or even touched - they must be felt with the heart.
A sustainable world starts with sustainable choices.
Man is the creator of his destiny, not its slave.
成功不是成为最好的，而是比昨天更好。
学习数学的最好方法就是做数学。