Irony is the gaiety of reflection and the joy of wisdom.
The whole art of teaching is only the art of awakening the natural curiosity of young minds for the purpose of satisfying it afterwards.
Irony and pity are two good counselors: one, in smiling, makes life pleasurable; the other, who cries, makes it sacred.
Existence would be intolerable if we were never to dream.
Change is the essence of life.
What men call civilization is the condition of present customs; what they call barbarism, the condition of past ones.