To oblige persons often costs little and helps much. Baltasar Gra
The heaven of the envied is hell for the envious. [...because they focus on what they don't have rather than being grateful for what they have, which is always better than some others.]
A single lie destroys a whole reputation of integrity. Baltasar Gracia
Take care to make things turn out well. Some people scruple more over pointing things in the right direction than over successfully reaching their goals. The disgrace of failure outweighs the diligence they showed. A winner is never asked for explanations.
He that communicates his secret to another makes himself that other's slave.