Life is composed of lights and shadows,and we would be untruthful,insincere,and saccharine if we tried to pretend there were no shadows.

解释：凡要谋划一件事，一定要预见到成功的把握，然后才可以去做。

"The worst enemy of truth is not the lie—deliberate, contrived, and dishonest—but the myth—persistent, persuasive, and unrealistic."

Sometimes it's the people no one imagines anything of who do the things that no one can imagine.

"I can resist everything except temptation."

Pain can be a form of knowledge.

The true measure of progress is not just profit, but the positive impact we leave on society and the planet.