"We make progress in society only if we stop cursing and complaining about its shortcomings and have the courage to do something about them."

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The spirit of a warrior is not geared to indulging and complaining, nor is it geared to winning or losing. The spirit of a warrior is geared only to struggle, and every struggle is a warrior's last battle on earth. Thus the outcome matters very little to him. In his last battle on earth a warrior lets his spirit flow free and clear. And as he wages his battle, knowing that his intent is impeccable, a warrior laughs and laughs.

— Carlos Castaneda