The best time to plant a tree was 20 years ago. The second best time is now.
人は、自分が認められるために、他人を認める。
"Mathematics is the science of patterns, and we study them to learn how to think logically, critically, and creatively."
自然界中每年的痛苦总量超出了所有体面的思考。在我写这句话的一分钟内,成千上万的动物被活生生地吃掉,许多其他动物在逃命,因恐惧而呜咽,其他动物则被寄生虫从内部慢慢吞噬,成千上万的动物因饥饿、口渴和疾病而死亡。