That man is guilty of impertinence who considers not the circumstances of time, or engrosses the conversation, or makes himself the subject of his discourse, or pays no regard to the company he is in.
Marcus Tullius CiceroNot to have knowledge of what happened before you were born is to be condemned to live as a child.
Marcus Tullius CiceroFor one day spent well, and agreeably to your precepts, is preferable to an eternity of error.
Marcus Tullius Cicero