“Virtue is chok'd with foul ambition”

“Foul words is but foul wind, and foul wind is but foul breath, and foul breath is noisome; therefore I will depart unkissed.”

“In thy foul throat thou liest.”

“So fair and foul a day I have not seen.”

“You and you are sure together,As the winter to foul weather.”

“My father's spirit in arms! all is not well;I doubt some foul play: would the night were come!Till then sit still, my soul: foul deeds will rise,Though all the earth o'erwhelm them, to men's eyes.”

“Ambition should be made from sterner stuff.”