I think goals should never be easy, they should force you to work, even if they are uncomfortable at the time.
如果你不感到不适,你就没有成长。
奥利弗·特威斯特出生在一家济贫院里,他来到这个艰难的人世的那一刻,是否能活过三分钟都是很难说的。他躺在一张小硬板床上,挣扎着开始呼吸。
The power of abstraction is what allows mathematics to transcend the limits of physical reality.