确也没有什么是小的，任何一个能向自然界深入观察的人都知道这一点。

Nothing is small, in fact; any one who is subject to the profound and penetrating influence of nature knows this.

youdao

黄色： 黄色和黑色是自然界最让人过目难忘的组合——老虎，蜜蜂都是这样一身装扮。 这样的颜色是在宣告：你最好注意着点。

YELLOW: Yellow and black is the most unignorable colour combination in nature - tigers, stinging bees - it’s the colour that says: you’d better pay attention to me.

youdao

还有一点我想指出的是，人类本身就是自然界的一部分，你可以理直气壮地说我们所做的每一件事、任何一件事都是“自然”的。

I would also point out that humans are a part of the natural universe. One could reasonably argue that everything and anything that we do is "natural".

youdao