Curiosity is one of the permanent and certain characteristics of a vigorous intellect. Every advance into knowledge opens new prospects, and produces new incitements to farther progress.
Every quotation contributes something to the stability or enlargement of language.
Perhaps man is the only being that can properly be called idle.
Mutual cowardice keeps us in peace.
He was so generally civil, that nobody thanked him for it.
Round numbers are always false.