Well in some religons you get a sense of security after death
I don't have a religion and I don't fear death, in fact I think that after a long life it'd be nice to just have nothing at all, like sleeping forever.
others a philosaphy of non-violence,
You don't need to have a religion to have non-violence, you just need to teach people and it follows itself.
Religons are a belife or philosaphy right.
What they call right anyways. They can say whatever they want is right, that doens't make it so. The bible teaches that slavery is right, does that make it so? No.
So then without religon you couldn't have certain belifes or philosaphys
Yes you can, in fact, it would probably be more common, as religion teaches arrogance (Like this) and that you and only you are right, and that anyone who opposes you is wrong, and that you have a right as a follower of the one true religion to teach them this or make sure they aren't allowed to continue doing such.