Never explain yourself. Your friend don't need it and your enemies won't believe it.
The less you know about a subject, the longer it takes you to explain it.
There is no waste of time in life like that of making explanations.
Benjamin Disraeli (1804-1881) British politician and author.
The first forty years of life give us the text; the next thirty supply the commentary on it.
Arthur Schopenhauer (1788-1860) German philosopher.
There is occasions and causes why and wherefore in all things.
William Shakespeare (1564-1616) British poet and playwright.