小人也有坦荡之处，因为无所忌讳；君子亦有忧戚之处，因终生都忧国忧民。
Coal miners don't just dig in the dirt, they dig for progress.
The laws of physics produce complex structures, and in at least one case, a complex structure produces the laws of physics.
世界上最伟大的教育就是观察大师们工作。
A map of the world which does not include Utopia is not worth even glancing at.