Striking Thoughts by Bruce Lee
Takeaways:

Words
  • Don't speak negatively about yourself, even as a joke. Your body doesn't know the difference.
  • “Words are energy and cast spells, that's why it's called spelling.” Change the way you speak about yourself and you can change your life.

Learning
  • The only thing to know is that you do not know. You cannot fill your cup if it’s already full.
  • Life is our teacher, there is something to learn in every single moment. Look for the lesson.
  • If you have to think, you still do not understand. Feel.

Time
  • Past = memories. Present = opportunities. Future = possibilities.
  • To waste time: expend it without thought, carelessly. To spend time: pass it in a specific manner. Once time is gone it's gone.
  • If you love life, don't waste time. Time is what life is made up of.
  • The now is the truth. Truth has no future. Nothing exists besides the now.
  • Anxiety is the gap between the now and the then. If you are living in the now, it’s impossible to be anxious.

Being
  • We tend to have more faith in what we imitate than in what we originate.
  • Thoughts are things. A man is what he thinks. "As he thinketh in his heart, so is he."
  • Use your ego, instead of being used by it.
  • The more we value things, the less we value ourselves.
  • What we are not changing, we are choosing.
  • Instead of dedicating your life to actualize a concept of what you should be like, actualize yourself.