It is in everyone's best interest to realize and remember that the default human way is to believe first and ask questions never. We become better th… - Guy P. Harrison

Remember who you are: a human, a lifeform who still carries echoes of the forest and deep memories of the wild. Answer this call. Respond to the mind's natural attraction to the natural world. Do all you can to nurture your brain's need for nature so that it may serve you well.

Humility is the key. If you are an arrogant, condescending skeptic then you are doing it wrong. Science and critical thinking rest upon a premise that says anyone can be wrong about anything. A good thinker is humble. We also must be mindful of the fact that very intelligent people can hold very dumb beliefs. It's a human condition. Irrational believers are not inferior people; they simply made a misstep somewhere along the way in their thinking.

It's the 21st century and still we have no universally agreed upon definition of life. It seems the universe does not care about our desire for tidy categories and tight descriptions. Our intellectual comfort is irrelevant to reality. When it comes to life, gray zones and blurry boundaries abound. This is bizarre considering life has been on our planet for more than 3.5 billion years and it's all around us now. Life saturates Earth's surface zone, from more than a mile deep in the crust to the stratosphere miles above. Its diversity and overall success are staggering, difficult to comprehend. For example, some scientists estimate that there are more than one trillion species alive right now. In total, Earth may have hosted more than 100 trillion species so far. Life is no stranger to us. And yet, what is it?