To love is to risk not being loved in return. To hope is to risk pain. To try is to risk failure, but risk must be taken because the greatest hazard in life is to risk nothing.
解释：有的东西外表华丽而实质不好，有的东西实质很好而外表并不华丽。
要理解宇宙，你必须理解它所用的语言，那就是数学。
A mathematician is a maker of patterns, like a painter or a poet.
Who drives me forward like fate？The Myself striding on my back。
你老师教不了书是因为我。