"Rashness belongs to youth; prudence to old..." - Quote by Marcus Tullius Cicero

“He who acknowledges a kindness has it still, and he who has a grateful sense of it has requited it.”

“Promises are not to be kept, if the keeping of them is to prove harmful to those to whom you have made them.”

“To stumble twice against the same stone, is a proverbial disgrace.[Lat., Culpa enim illa, bis ad eundem, vulgari reprehensa proverbio est.]”

“An old young man, will be a young old man.”

“The years in your lifeare less importantthan the life in your years.”

“Age is no better, hardly so well, qualified for an instructor as youth, for it has not profited so much as it has lost.”

“Flowers so strictly belong to youth, that we adult men soon come to feel, that their beautiful generations concern not us: we havehad our day; now let the children have theirs. The flowers jilt us, and we are old bachelors with our ridiculous tenderness.”

“Truly novel inventions emerge only in one's youth. Later one becomes ever more experienced, famous-and foolish.”

“Stay in college, get the knowledge. And stay there until you're through. If they can make penicillin out of moldy bread, they can sure make something out of you. Advice to a young person to continue his education.”