Do not use a cannon to kill a mosquito.
At fifteen my mind was directed to study, and at thirty I knew where to stand.
Of all that Heaven produces and nourishes, there is none so great as man.
A wise man seeks by music to strengthen his soul: the thoughtless one uses it to stifle his fears.
To know is to know that you know nothing. That is the meaning of true knowledge.
I live in a very small house, but my windows look out on a very large world.