While this is true, us humans don't have the same capabilities as an inanimate object, and vice versa. We are never going to change as people, we can just put on 'faces' to hide our inner selves.
For example, we try to be professional when at an interview, while none of us were born 'professional'. We put on these 'faces' to hide ourselves from life, but at what cost? Are we supposed to put on these faces? Am I different from who I should be? Are you?
These faces are caused from external influences, like stress, mentioned above, with the common 'diamond proverb'. But we are far from charcoal. We live on the same earth, with the same or similar influences, but we weren't born like the charcoal. Therefore we have no capability of actually turning stress into success, however we can put on mentioned 'faces' to hide stress.
Again, this all links to what I've said previously about acceptance. We aren't accepted, no matter how you look at it, as we aren't actually ourselves. We are an adaptation of our fresh minds changed by environment.

'Tom' .. I wasn't referring to the concept of humanity being allowed to choose, what each person decides to be 'True'.. across-the-board, if-you-will - Even if, we Do have supposedly sincere believers, in the 'flat earth' concept; 'Garden fairies'.. and you name it! [ :
As for 'troy' alluding to 'believers' supposedly "suffering, without consciously knowing it" ..N-O-T ! .. I won't take the time to cite 'verses' that speak otherwise; But, for one.. Considering, that I had my 4th consecutive, 'catheter' change procedure, done within the past 3 hours..{True}.. Believe me, I definitely felt the Pain, twice today; Removal, and insertion!
Quote, referring to the following image - "A diamond, is merely a piece of charcoal, that handled stress, exceedingly well"! ..Eg. An allusion, between the relationship, of Life's, inevitable 'stress'.. and its' ideal, hopeful outcome.. Ie. Character development. o: