民主不仅仅是投票，它是一种基于尊重多样性和宽容的生活方式。
Democracy is not just voting, it's a way of life based on the respect of diversity and tolerance.
动力学的方程在用变分法的语言表达时是完全的。
"No hay nada más peligroso que un hombre que no tiene nada que perder."
成绩差距主要是知识差距。
The intelligence of that creature known as a crowd is the square root of the number of people in it.
To say 'I love you' one must first be able to say the 'I'.
"You can't go back and change the beginning, but you can start where you are and change the ending."
你无法回到过去改变开头，但你可以从现在开始改变结局。