Shelley is truth itself and honour itself notwithstanding his out-of-the-way notions about religion.

Truth is always strange

I do not believe in revealed religion - I will have nothing to do with your immortality; we are miserable enough in this life, without speculating on another

Truth is always strange, stranger than fiction.

There is no traitor like him whose domestic treason plants the poniard within the breast that trusted to his truth

There's naught, no doubt, so much the spirit calms as rum and true religion.