难以捉摸的；难以找到的；不易记住的。

The truth is elusive, because it knows where to hide.

youdao

当你觉得放弃思量一个挑战是否会给你带来痛苦和困难是件不易的事情，记住，你并不需要听取你的想法。

If you find it hard to stop thinking about the pain or difficulty a challenge may cause you, remember that you don't have to listen to your thoughts.

youdao

你可能出色地做到任何事，但记住，成功来之不易，挫折也是成长的一部分。

It's possible to be excellent at anything, but nothing valuable comes easy and discomfort is part of growth.

youdao