No matter how complex or refined, all behavior is to be explained in terms of stimulus and response.

煤炭技术的创新与其他能源领域的创新同样重要。

It is India that gave us the ingenious method of expressing all numbers by means of ten symbols, each symbol receiving a value of position as well as an absolute value.

"Love is not about possession, it's about appreciation."

Leadership is not about being in charge. It's about taking care of those in your charge.

最动听的话不是“我爱你”，而是“它是良性的”。