The labor which it would require to make a single one of these guns by hand would exhaust the patience and perseverance of any ordinary workman.

True progress comes when we challenge the status quo and refuse to settle for 'good enough.'

I always believe if you’re stuck in a hole and maybe things aren’t going well you will come out stronger.

To be or not to be. That's not really a question.

"He who has a why to live can bear almost any how."

"Success can make people unlearn the habits that made them successful in the first place."

地质时间不仅漫长，而且其事件的发生是不规则的。

"The best cinematography is the one that you don't notice."

Quality is not an act, it is a habit that we must cultivate every day.

But not all dark places need light， I have to remember that.