电磁场的方程是从实验事实中推导出来的。
内在观点对于理解法律的本质至关重要。
Love is not love which alters when it alteration finds.
Personality changes more during your 20s than at any other time in life.
All changes follow a law.
最好的决策是那些既造福人类又保护地球的决策。