Dictatorships breed fear, fear breeds silence, silence breeds oppression.
可持续性不再是一个选择;它是乳制品农业未来的必需品。
A company's true value is measured by its impact on people and the planet.
我不必向任何人证明什么。没有什么可证明的。
The concept of probably approximately correct (PAC) learning has been foundational in computational learning theory.
The anarchic nature of the international system forces states to compete for power.