數(shù)學(xué)是給不同事物以相同名稱(chēng)的藝術(shù)。
The mind is not a vessel to be filled, but a fire to be kindled.
恐懼是迷信的根源,也是造成殘忍的主要原因之一。 智慧始于征服恐懼。
"La vida es una enfermedad mortal de transmisión sexual."
Today is difficult, tomorrow is more difficult, but the day after tomorrow is beautiful.