A Deceiving Appeareances

The objects looks different when being seen from far away.

I assume we're talking about some object rather than many (though maybe I'm wrong based on the intended title). Saying "the object" sounds too vague to me.

The reality deceives us.

Grasping all its nuances is an impossible task.

Though saying "impossible task" is not wrong by any means, I think leaving out "task" is more natural for this sentence.

The best minds have tried to achieve it, or to explain why the very attempt is naive.

I think no comma is better since we are not connecting independent clauses. That is, the "best minds" are doing both actions. Otherwise, great job! Very poetic.

From here it looks beautiful.

Before, when I was ostanding in the grass of the mountain, I realized I wasn't as perfect as it looked.

I wasn't sure whether to correct this one because it sounds *almost* natural. It's a tough call.

It was extremely high, and the mountain's inclination was so steep that I should helphad to brace myself with my hands.

I'm guessing you'd be bracing yourself by crouching and pressing your hands into the ground. The sentence sounds a bit vague though I kind of know what you're getting at.