is to be motivated and to have the right attitude.

你要充满动力，有正确的态度。

留在记忆中的学生 - SpeakingMax英语口语达人

but as long as you're at Yale, and you're interested, and you're motivated, you'll be fine.

但是只要你在耶鲁，有求知欲并且有动力，那么一切都会好的。

学习外语的原因 - SpeakingMax英语口语达人