And why beholdest thou the mote that is in thy brother's eye, but considerest not the beam that is in thine own eye?
Or how wilt thou say to thy brother, Let me pull out the mote out of thine eye; and, behold, a beam is in thine own eye?
Thou hypocrite, first cast out the beam out of thine own eye; and then shalt thou see clearly to cast out the mote out of thy brother's eye.
- Jesus in Matthew Chapter 7:3-5 (The Sermon on the Mount)
I am wiser than this man, for neither of us appears to know anything great and good but he fancies he knows something, although he knows nothing; whereas I, as I do not know anything, so I do not fancy I do.
- Socrates in Plato's Apology