Life is earnest, art is gay.
Knowledge, the object of knowledge and the knower are the three factors which motivate action; the senses, the work and the doer comprise the threefold basis of action.
The mountain cannot frighten one who was born on it.
He cannot complain of a hard sentence, who is made master of his own fate.
Keep true to the dreams of your youth.
Opposition always inflames the enthusiast, never converts him.