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I maintain also that substances, whether material or immaterial, cannot be conceived in their bare essence without any activity, activity being of the essence of substance in general.

You're constantly trying to prove yourself, even after you've made it.

Life, work - it's all very organic and fluid, a laboratory. I always tell people: whatever your thing is, you just have to be in it. Jump in; you'll figure it out.

One thing that you can't fake is chemistry.

You just can't fake chemistry.

I still need to go through the process of proving myself.

I'm not trying to prove that I'm capable of doing many things.

When you're working and making money, that's all good, but there has to be something that provides a substance, I think.

You have to give people the opportunity to prove themselves.

I believe you need scientific proof that something works before you entrust your health to it.