孩子们喜欢安静练习与自由选择。
It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge.
试图阻止知识前进是没有好处的。无知永远不比知识好。
心理学的理解来自于观察心灵的行动。
The search for truth is more precious than its possession.
人类的选择在于自由和幸福之间，而对于大多数人来说，幸福更好。