Our 9-month-old son saw his hand waving all about. 

It stopped moving as he looked and looked. 

It dived for his lips, and he sucked his thumb.

I saw him using the three pillars of scientific discovery.

Observation: “Hey, what is that thing in the air?”

Question: “Will it fit in my mouth?” 

Experimentation: “Let me try and see what happens.”

A discovery we learn on our own.

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