comfort zone

People can choose to stay in their comfort zone for their whole life;
but it's ok to throw your fear behind and push yourself out of comfort zone.

Every time you try different things,
your comfort zone gets bigger.

Sometimes it's good to challenge yourself with what you are afraid of,
until everywhere becomes your comfort zone;
Then you can go anywhere you want with no fear.

My comfort zone is staying in science.
I should step out of my comfort zone,
and, be productive.