Questions are never indiscreet. Answers sometimes are.

To become rich is easy. Much harder is to solve the riddles of of the heart.

It is not every question that deserves an answer.

Do not turn back when you are just at the goal.

Never thrust your own sickle into another's corn.

One ungrateful man does an injury to all who are suffering. [Lat., Ingratus unus miseris omnibus nocet.]