他的演讲让我们对这个复杂的社会问题有了深刻的认识。

His speech gave us valuable ___insight into this complex social issue.

在冥想时，她突然领悟到了这个问题的本质。

During meditation, she had a sudden ___insight into the true nature of the problem.

这位老教师对学生心理有着深刻的洞察力。

The experienced teacher shows great ___insight into students' minds.