“We are shaped by our thoughts; we become what we think. When the mind is pure, joy follows like a shadow that never leaves.” – Buddha

“We make a vessel from a lump of clay; it is the empty space within the vessel that makes it useful. We make doors and windows for a room; but it is the empty spaces that make the room livable.”  “埏埴以为器,当其无,有其之用。凿户牖以为室,当其无,有室之用。” – Laozi 老子

“知之乎?知之为知之,不知为不知,是知也。” “What is knowledge? If you know, recognize that you know; if you don’t know, then admit that you don’t know. That is knowledge.” –  孔子 Confucius

“In the same river you could not step twice, for other waters are flowing.” – Heraclitus

“Good and evil are the same.” – Heraclitus

“The only good is knowledge, and the only evil is ignorance” – Heraclitus

“Life is neither good or evil, but only a place for good or evil.” – Marcus Aurelius

“There is nothing either good or bad, but thinking makes it so.” – Shakespeare

“No man is free who is not master of himself.” – Epictetus

“The universe is change; our life is what our thoughts make it.” “Remember all is opinion.” – Marcus Aurelius

“A man should be upright, not be kept upright.” – Marcus Aurelius

“Wisdom is knowing what to do next, skill is knowing how to do it, and virtue is doing it.“ – David Starr Jordan