You must learn from your past mistakes, but not lean on your past successes.
Denis Waitley
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juli
01
2013
You must learn from your past mistakes, but not lean on your past successes.
Denis Waitley
The whole problem with the world is that fools and fanatics are always so certain of themselves, but wiser people so full of doubts. Bertrand Russell |
Je werkt anders dan je denkt
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