Success is never due to one thing, but failure can be. Sleeping well won't make you successful, but not sleeping enough will hold you back. Hard wor… - James Clear

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Success is never due to one thing, but failure can be.

Sleeping well won't make you successful, but not sleeping enough will hold you back. Hard work is rarely enough without good strategy, but even the best strategy is useless without hard work.

Many things are necessary, but not sufficient for success.