What I have learned from all this is that you should dare to challenge yourself and remember that you are the only person that sets your own limits.

我从这一切中学到的是，你应该敢于挑战自己，并记住你是唯一能为自己设限的人。

youdao

We should dare to face and challenge all when facing difficulty and setback.

面对困难和挫折要敢于面对和挑战！

youdao

In the letter he wrote, "I want battle with you, winner takes all, if you do not dare to take up the challenge, my advice is that you surrendered early."

他派人送去一封信，说道，我要与你决一雌雄，如果你不敢决战，还是趁早投降为好。

youdao

But does that mean Lindzen and all other climate scientists who dare to challenge the status quo are being unfairly treated?

FORBES: Climate Sins and the High Priests of Peer Review