The heaven of the envied is hell for the envious.
Make your friends your teachers and mingle the pleasures of conversation with the advantages of instruction.
If to talk to oneself when alone is folly, it must be doubly unwise to listen to oneself in the presence of others.
None is so perfect that he does not need at times the advice of others.
The more merit, the less affection.
A single lie destroys a whole reputation for integrity.