To find fault is easy; to do better may be difficult.
Neither blame or praise yourself.
A good man will take care of his horses and dogs, not only while they are young, but when old and past service.
And Archimedes, as he was washing, thought of a manner of computing the proportion of gold in King Hiero's crown by seeing the water flowing over the bathing-stool. He leaped up as one possessed or inspired, crying, "I have found it! Eureka!".
No beast is more savage than man when possessed with power answerable to his rage.
The ripeness of adolescence is prodigal in pleasures, skittish, and in need of a bridle.