We must balance the need for energy with the need to protect the environment.
心理現(xiàn)象是為生活服務(wù)的工具。
The best ideas often come from listening to those closest to the problem.
Un libro es un diálogo infinito entre el autor y el lector.
Education is the art of making man ethical.
宇宙充滿了神奇的事物,它們正耐心地等待我們的智慧變得更加敏銳。