I forget where I read this quote but have always loved it:
"When I was a teenager, I read about all of these Bay Area guys that launched startups from their garage.
I thought 'Man, those guys must be really tough!'. Why? Because I'm from Canada and working in garages in the winter is really cold."
Without HVAC, it can still be tough.
Here you go!
https://www.paulgraham.com/marginal.html