Usage is the best language teacher.
From writing rapidly it does not result that one writes well, but from writing well it results that one writes rapidly.
An evil-speaker differs from an evil-doer only in the want of opportunity.
Write quickly and you will never write well; write well, and you will soon write quickly.
Though ambition may be a fault in itself, it is often the mother of virtues.
Men, even when alone, lighten their labors by song, however rude it may be.