我从不害怕死亡，只害怕从未尝试。

I never feared death or dying. I only fear never trying.

youdao

我从不害怕死亡，只害怕从没有去闯过。

I never feared death or dying, I only fear never trying.

youdao

只害怕没有去努力争取。

I only fear never trying.

youdao

for why you became afraid of dogs is that one day a dog came up and he was a neutral stimulus.

你之所以害怕狗,是因为，某天有只狗向你跑来,狗是一个中性刺激。

耶鲁公开课 - 心理学导论课程节选