“And we also know that life itself is a seemingly endless battle. A battle between what is good and bad in us. What we can only possibly win by the only way, which is to conquer and defeat ourselves.”
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“Life—the way it really is—is a battle not between good and bad, but between bad and worse”

As quoted in Honor Your Gifts (2007) by Dona M. Deane, p. 199.
Variant: But there is suffering in life, and there are defeats. No one can avoid them. But it's better to lose some of the battles in the struggles for your dreams than to be defeated without ever knowing what you're fighting for