A great step toward independence is a good-humoured stomach.
The rust of the mind is the destruction of genius.
I will have a care of being a slave to myself, for it is a perpetual, a shameful, and the heaviest of all servitudes; and this may be done by moderate desires.
When thou hast profited so much that thou respectest even thyself, thou mayst let go thy tutor.
When one is friend on himself, also is friend of everybody.
Delay not; swift the flight of fortune's greatest favours.