What is your favorite quote and what does it mean?

[42tanawat055]

My favorite quote is "The opportunity never knocks the door twice."
It means that when you are offered something by someone and turn it down, they probably won't offer it again. or if an opportunity presents itself for you to get something you want and you don't take it, you might not get the opportunity again.
This quote always reminds me to value every opportunity in my life.

Tanawat 4EN 055