Your most unhappy customers are your greatest source of learning.
It's fine to celebrate success but it is more important to heed the lessons of failure.
Most people overestimate what they can do in one year and underestimate what they can do in ten years.
We always overestimate the change that will occur in the next two years and underestimate the change that will occur in the next ten. Don't let yourself be lulled into inaction.
Don't let yourself be lulled into inaction.
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