Remember that whatever knowledge you do not solidly lay the foundation of before you are eighteen, you will never be master of while you breathe.
Lord Philip Dormer Stanhope Chesterfield, Philip Dormer Stanhope Earl of Chesterfield (1855). “The Works of Lord Chesterfield: Including His Letters to His Son, Etc : to which is Prefixed, an Original Life of the Author”, p.166
