We must be mindful of the consequences of selfishness.

我们一定要留意自私自利的后果。

Be mindful of your body language.

留心自己的身体语言。

To help me be mindful of my oath.

为了让我记住我的誓言。

Let's be mindful of those who have less.

让我们惦记着那些拥有的比我们少的人们。

Please, however, be mindful of its GPL license.

不过，请别忘记它的GPL许可证。