If we want to enjoy peace, we must keep our weapons well; if we lay down our arms, we will never have peace.
Folly is the mother of all evils.
Freedom only resides in states where the people have supreme power.
Might makes right.
Science that strays from justice should be called cunning more than science.
The selfish person loves himself without rivals.
Even though I am already older, I continue to learn from my disciples.