理解心灵需要理解符号如何根植于感知和行动。

我希望我的音乐能让人们感觉良好并充满力量。

In every real man a child is hidden that wants to play.

The teacher must believe in the potential of his students.

Innovation in agriculture isn't just about technology; it's about changing mindsets.

解释：不通过学习而能自己知道的，不去请教他人而能自己通晓的，从古到今没有这样的事。