Pessimism Hopelessness Downfall Quotes

“The optimist sees the glass half full. The pessimist sees the glass half empty. The chemist sees the glass completely full, half in liquid state and half in gaseous, both of which is probably poisonous.”
― Weike Wang, Chemistry

“The things that you regret are the things you cannot reset.”
― Titus

“We may make contact with ambitious species on other planets or stars; soon thereafter there will be interplanetary war. Then, and only then, will we of this earth be one.”
― will and Ariel Durant