Reality is merely an illusion, albeit a very persistent one.

The distinction between the past, present and future is only a stubbornly persistent illusion.

The distinction between past, present, and future is only a stubbornly persistent illusion

May the dreams of your past be the reality of your future

Reality is merely an illusion, although a very persistent one

As far as the laws of mathematics refer to reality, they are not certain; and as far as they are certain, they do not refer to reality.