Every dollar invested in responsible forestry today grows into a hundred dollars of environmental and economic value tomorrow.
最大的恐惧不是死亡，而是生活。
The easiest and noblest way is not to be crushing others，but to be improving yourselves.
The essence of computational complexity is to understand the limits of what can be computed efficiently.
The individual's biography is shaped by the historical and social context in which it is embedded.
