The progress of mathematics is measured by the number of problems it can solve.
数学的进步是通过它能解决的问题数量来衡量的。
过去不在我们身后,而在我们之内。
应对生活的唯一方法是接受它的本来面目。
One good thing about music, when it hits you, you feel no pain.
When safety competes with production, safety always wins.