"Tennis is a sport where you have to be strong mentally and physically, but the mental part is even more important."
对感受者而言,生活是悲剧;对思考者而言,生活是喜剧。
解释:使用毒性大的药物治疗疾病时,病情十成中只能去掉六成就要停药,以免伤害正气。
The best way to predict the future is to create it.