The study of the mind must be based on direct observation.
对心灵的研究必须基于直接观察。
解释:受宠而不骄横,骄横而能安于下位,地位在下而不怨恨,怨恨而能克制的人,是非常少见。
Innovation is the key to sustainable development in the oil and gas industry. We must embrace new technologies to drive efficiency and environmental protection.