The only limit is the one you set for yourself.

自然状态有一种自然法则来管理它，这种法则约束着每个人：而理性，即这种法则，教导所有愿意咨询它的人类，既然都是平等和独立的，任何人都不应伤害他人的生命、健康、自由或财产。

The individual himself is a fallacy.

The house is a small city, the city is a large house.

The truth of our faith becomes a matter of ridicule among the infidels if any Catholic, not gifted with the necessary scientific learning, presents as dogma what scientific scrutiny shows to be false.

质量不是声明；它是一种证据。

煤炭的未来在于清洁高效利用。