The past is always changing. It is not fixed. The past is not stable.

Innovation is the lifeblood of sustainable aquaculture—without it, we risk stagnation and environmental harm.

在一年之中，最重要的事情是种植谷物，对于十年的打算，最重要的事情是种植树木。

我总是努力提升自己。

"The difference between correlation and causation is fundamental in empirical work."

The city is a mirror of society.

蒸汽的力量如今已被充分理解，剩下的只是改进实践。