He makes himself ridiculous who is for ever repeating the same mistake.
Often a purple patch or two is tacked on to a serious work of high promise, to give an effect of colour.
Anger is momentary madness, so control your passion or it will control you.
The mind that is cheerful in its present state, will be averse to all solicitude as to the future, and will meet the bitter occurrences of life with a placid smile.
What may not be altered is made lighter by patience.
The poets aim is either to profit or to please, or to blend in one the delightful and the useful. Whatever the lesson you would convey, be brief, that your hearers may catch quickly what is said and faithfully retain it. Every superfluous word is spilled from the too-full memory.