Let's start things off with the most important reason of all...
... BILL NYE'S BOWTIES.
Now that that's out of the way, listen up and CONSIDER THE FOLLOWING:
Imagine a world without Bill Nye...
Doesn't look too good, does it?
Now snap out of it and let's keep talking about why Bill is the best:
Bill Nye is the greatest teacher because he just wants to see you learn:
And he knows exactly where to find that knowledge:
Because he doesn't age, so he can teach you FOREVER:
Like, seriously, the dude doesn't age:
He honestly may or may not be Abraham Lincoln:
Because he taught us all that love exists:
Because he'll help you with your bowtie:
Because if he ran for president, it would be a landslide:
Because one time in the history of mankind he made this face:
Because watching his show was EXACTLY like this:
Because his lessons transcend age:
And he isn't afraid to act out Act V, Scene 1 of "Hamlet:"
He taught us the proper way to hold a globe:
And he introduced the world to Joel McHale in "The People's Quart:"
Because he looks great travelling through space and time:
Not to mention that he also looks great as a naked mole rat:
Because he just may be Daniel Tosh's father:
And because he taugh us that five Bills are better than one:
Because he was the original ladies man:
Because he taught us how to survive the bite of a wild Shia Labeouf:
Because this sight still excites you:
Oh, yeah, and he actually had some great advice too: