“I must do something” always solves more problems than “Something must be done”.
If you want to be incrementally better: Be competitive. If you want to be exponentially better: Be cooperative.
Life is a maths equation. In order to gain the most, you have to know how to convert negatives into positives.
Life is like a 1,000 page book. You want to quit halfway through, but then you realise you have a lot left to look forward to.