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I've found that often, just when you think you've hit a wall, you experience a breakthrough that takes you to new heights in accomplishment

Stedman Graham (2002). “Build Your Own Life Brand!: A Powerful Strategy to Maximize Your Potential and Enhance Your Value for Ultimate Achievement”, p.135, Simon and Schuster
I've found that often, just when you think you've hit a wall, you experience a breakthrough that takes you to new heights in accomplishment