The internet is not for sissies.
Old age is not for sissies.
We didn't get where we are thanks to the sissy notion of resilience.
Underneath that facade, I'm a terrified little sissy, just like everybody else. But I never let it show.
Cancer is not for sissies.
Getting old is not for sissies, kid.
Ernest Hemingway did a great deal toward making the writer an acceptable public figure; obviously, he was no sissy.
I don't write music for sissy ears.
Old age ain't for sissies
Getting old isn't for sissies.