亦

亦

"Also; too; likewise."

Here, '亦' means 'also', showing that the subject has an additional quality of thinking deeply aside from being ambitious.

他志向远大，亦深思熟虑。

He is ambitious and also thinks deeply.

In this context, '亦' is used in a written or formal tone to mean 'also' or 'too' in emphasizing that something additional is mentioned in the book.

书中亦提到了这个重要的历史事件。

The book also mentions this important historical event.

Here, '亦' is used in a somewhat literary sense to indicate an addition, aligning with the idea of happiness being part of an important aspect of life.

生活中，快乐亦是重要的一部分。

In life, happiness is also an important part.