The best way to reduce costs is to not have them in the first place.

Mathematics is the key to unlocking the secrets of the universe and understanding the fundamental laws that govern it.

未来不是沉重的，而是轻盈的。

Success comes from taking calculated risks, not reckless ones.

The mind is a complex of interacting elements.

The saddest thing about love is that not only that it cannot last forever, but that heartbreak is soon forgotten.

解释：向善就好像攀登山峰一样难，向恶就好像山石坍塌那样容易。