Improvement won't come easily, it won't come overnight and there are limits beyond which not even science can take us.

改进不会一蹴而就，也不会一夜之间就发生，而且即使是科学也有无法超越的限制。

youdao

Although that is hard for us to understand because we live within the limits of time, yet it is true that God always was and will be.

虽然这对我们来说是难以理解的，因为我们生活在时间的局限里，但是神的确一直在那里，并且永远在那里。

youdao

He defines it by saying "rightful liberty is unobstructed action according to our will within limits drawn around us by the equal rights of others."

他将之定义为“正当的自由为，在其他人据相同权利划定之范围内，依我等之意愿畅行无碍。”

youdao

"The agreement verifiably limits, reduces excess Russian and US nuclear stockpiles, and it provides for an updated,streamlined, modern set of verification, monitoring and transparency provisions."

VOA: standard.2010.04.04

That limits us and it's very hard to get new ideas started, but they do get started; so, I think we'll get some really obvious advances.

这会限制我们，使我们很难有所创新，但这些人取得了突破;,所以，只有突破才能进步。

耶鲁公开课 - 金融市场课程节选

Setting limits with aging parents is just as important with parents as it was for us to set limits with our kids.

FORBES: How to Say "No" to Your Mother

In our culture, the more off limits a topic is, the more it intrigues us.

CNN: Five low salaries that might surprise you

It shows us how political authority can be justified but only by accepting that moral authority limits it.

FORBES: The Order of Public Reason