It's now or never. It's always now or never even if it happens over and over again, each one is a new now or never. That's basically my whole philosophy of life and time and everything in between. And it's not a philosophy adopted from Jon Bon Jovi's song, no, it's more an Epicurean philosophy upgraded with memento mori and Nietzschean myth of eternal return. But the Bon Jovi song also helps capture its essence:
"It's my life
It's now or never
I ain't gonna live forever
I just wanna live while I'm alive"
Bon Jovi: It's My Life