The admirable qualities that kids display are endless. One of their many wonderful attributes is their tenacious character. I love watching them focus their attention on one specific task. They try and they try and they try until they get it just right, until they work out a solution. Sometimes frustration arises and sometimes they look as though they're ready to give up, but they still keep at it.
Something as simple (to us) as finding the square hole for the square shape, their little foreheads crinkle and display that one lonely wrinkle, their lips puff out into a pout, they clench their little fists and vent their frustration with a forceful 'grrr'. But then finally... something happens... they turn the shape sorter at just the right angle and 'plop' the square falls into the hole.
The look of triumph edges it's way onto their darling faces, beaming from their bright eyes, bouncing off their rosy cheeks, they look up at you and say "Mommy I did it" and you can't help but share in their joy. And you know, the reason they succeeded is because without even realizing it, they were smart enough to try different things, they were smart enough to know that the definition of insanity is trying the same thing and expecting different results.
Kids are smarter than one would think, their knowledge comes from the pure innocence of being.