解释：齐国是强国，利用它的强大进攻宋国，让他逞强，燕国就可以乘机打败齐国；齐国是大国，利用它的大国野心吞并宋国，增加土地，燕国就可以乘机进攻。

数字工具可以普及心理健康服务，但前提是我们必须将公平性和可及性置于设计核心。

The purpose of abstraction is not to be vague, but to create a new semantic level in which one can be absolutely precise.

不要思考。思考是创作的敌人。罪魁祸首是自我意识，任何自我意识都是混乱的。你不能尝试去做事情。你必须要做的仅仅是行动。

I have often been asked how my plays come about. I cannot say. Nor can I ever sum them up. I can only say that this is what happened. That is what they said. That is what they did.