"Define self-awareness and tell me what it is about it that requires something more than a material explanation. I do not accept the burden of explaining all phenomena, real or imagined. If you think more than matter is required for this thing you call self-awareness, which you have not defined, then you have the burden of showing why."

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Sometimes I find it too hot to run, and sometimes too cold. Or too cloudy. But I still go running. I know that if I didn't go running, I wouldn't go the next day either. It's not in human nature to take unnecessary burdens upon oneself, so one's body soon becomes disaccustomed. It mustn't do that. It's the same with writing. I write every day so that my mind doesn't become disaccustomed.

— Haruki Murakami