Sustainability is no longer an option; it's a necessity for the future of leather tanning.
Lisp is worth learning for the profound enlightenment experience you will have when you finally get it; that experience will make you a better programmer for the rest of your days, even if you never actually use Lisp itself a lot.
有些鸟儿天生就是关不住的,它们的羽毛太鲜明,歌声太甜美、也太狂野了,所以你只能放它们走,否则哪天你打开笼子喂它们时,它们也会想办法扬长而去。
"In the silence of reading, the loudest voices of humanity can be heard."
The only true voyage of discovery would be not to visit strange lands but to possess other eyes.