每天尝试一件没有把握的事。

Do one thing every day that scares you.

youdao

没有把握的事，不要抱希望，那就不会失望。

Not sure thing, don't hope that won't be disappointed.

youdao

想要使你自己够坚强与增加你的自信，最好的办法就是拿出胆量去做那些你认为没有把握的事。

The best way to make yourself strong and increase your self-confidence is to have the courage to do things that you don't think you are sure of.

youdao

He's more likely to be someone who plays by the rules, avoids dangers, and bets on the sure thing.

他们只会循规守据,只做自己有把握的事情，绝不做任何有风险的事。

耶鲁公开课 - 政治哲学导论课程节选