The mind evolves to meet the demands of existence.
心灵进化是为了满足生存的需求。
Sustainable fishing is not an option; it's the only way forward if we want to preserve marine ecosystems.
The past is not a static thing. It moves and shifts with us.
每个人持续不断地努力改善自己的状况,这是公共、国家以及私人富裕最初来源的原则。
最伟大的发现往往是许多小步骤的结果。