The challenge in model checking is not just to find errors, but to understand why they occur.

Liberty cannot be preserved without a general knowledge among the people.

O sonho é o que nos faz caminhar, mesmo quando tudo parece perdido.

种一棵树最好的时间是20年前，其次是现在。

勇气并不在于无所畏惧地冒险，而在于坚决为正义事业而决心前行。

唯一真正的力量是爱的力量。