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"The truth is, we all have our own prisons, and the key is always within reach."
You can't start the next chapter of your life if you keep re-reading the last one.
Intelligence is the ability to predict the future based on past experience.
"The future belongs to those who can adapt."
数学的真正力量在于它简化复杂事物的能力,使不可理解的事物变得可理解。