electrostatics - Why is the electric field zero inside a hollow conducting sphere?

If you have a conducting hollow sphere with a uniform charge on its surface, then will the electric field at every point inside the shell be 0.

The reason the electric field is 0 at the center is clear from the symmetry of the sphere, but for a point at a certain distance from the center, shouldn't a net electric field exist?

I saw a similar question on the site but it was vaguely explained.