Authors:

Prepare yourself for the world, as athletes used to do for their exercises; oil your mind and your manners, to give them the necessary suppleness and flexibility; strength alone will not do.

Lord Philip Dormer Stanhope Chesterfield, Eugenia Stanhope (1827). “Letters Written by the Earl of Chesterfield to His Son”, p.301
Prepare yourself for the world, as athletes used to do for their exercises; oil your mind and your manners, to give them the necessary suppleness and flexibility; strength alone will not do.