Certainty Quotes

"Give up what appears to be doubtful for what is certain. Truth brings peace of mind, and deception doubt." "It is with the reading of books the same as with looking at pictures; one must, without doubt, without hesitations, with assurance, admire what is beautiful." "Doubt is an uncomfortable condition, but certainty is a ridiculous one." "The old believe everything, the middle-aged suspect everything, the young know everything" "Nothing in life is promised except death."