Time is a concept that humans have created to make sense of the universe, but the universe itself is timeless.

奢侈者常嫌不够富足，节俭者虽贫穷却有余藏；奢侈者心常常贫困，节俭者的心常常富贵。

No matter how good you get you can always get better, and that's the exciting part.

Mental processes are the tools by which we build our survival.