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。
学习的意愿是一种内在动机,其来源和奖励都在于其自身的实践。
知识是灵魂的粮食。
The best way to predict the future is to create it.
The past is always with us, and it's always more complicated than we think.
The beauty of chemistry lies in its ability to create new possibilities from basic principles.
傍晚是我一天中最喜欢的时光。我喜欢从白天到夜晚的过渡,光线的变化,空气的感觉。