She was looking at him steadily; he however, found it difficult to look back at her; it was like gazing into a brilliant light.

她眼一眨不眨地看着他。但他不敢回看过去，因为那像凝视耀眼的光芒一样。

youdao

Even if you find a way to go wrong, do not stop, do not look back, because the world's most difficult to go, is the way back.

就算发现一条路走错了，不要停，也不要回头，因为世上最难走的，是回头路。

youdao

Here too there is no argument, Apple was near bankrupt when he took it over and he was willing to do whatever it took to save the company even borrowing money from Bill Gates which had to be incredibly difficult. (Interesting thing is if you look back at the quotes from Bill Gates of Steve Jobs they are generally very positive).

FORBES: Measuring The Life Of Steve Jobs

We must do the difficult work today, so that years from now people will look back and say that this generation rose to the moment, prevailed in a tough fight, and left behind a more hopeful region and a safer America.

NPR: Text of Bush's State of the Union Address