We know that no one ever seizes power with the intention of relinquishing it.
A ship in port is safe, but that's not what ships are built for.
The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge.
The fight against deforestation is a fight for humanity’s future.
只要心中有远大的志向，没有不能达到的地方；而心中所追求的，则没有任何困难可以阻拦。
Innovation often comes from questioning the status quo.
喜欢责备别人的人难以维持与别人的交情，经常原谅自己过失的人永远不可能改正错误。骄傲自满的人必定失败，自我夸耀的人愚蠢可笑，自我戕害的人必然害己害人。多说话而得到好处，不如沉默而不受伤害。
逻辑学研究不仅仅是关于正确推理，更是关于思维的自由。