Life is too precious to waste on regrets.
Psychological truth is what stands the test of life.
"Every moment is a memory in the making, and every memory is a moment lost."
阅读的习惯是唯一没有掺杂任何杂质的享受;当所有其他乐趣消失时,它依然存在。
The true challenge in mathematics is not solving problems, but asking the right questions.