A saying??

I came across this sentence long time ago.. but i didn't think much of it until recently.. (There Is No Such Thing As Coincident, The Is Only Necessity...) is this true? if i change everything that i thought was coincident into necessity.. it just sounds and looks very wrong in a way.. or maybe there is a meaning under it.. if i ever figure it out.. maybe i will post it here.. well that is if anyone were even reading these in the first place...