I remember when I was 8, my mom (she was a teacher) gave me a ruble and sent me to buy black sticks for a ball pen. 10 pieces for 10 copies. What’s easier – for such an intelligent and mature guy like me!

“The black,” she said, “don’t forget that they are the black ones! I do not need others.

I answered, they are black. I will not forget. Not a fool. He went to the store and stated about himself: "Black, black, not blue, not red, not green, but only black - the main thing is not to be confused! "

And here I go into the store, stretch my ruble and say loudly:

- I have 10 pieces, - and I continue for some reason no longer so loudly, - black...

Suddenly I get to it - I don't remember what black I need to buy! In panic, I look at the window: what can 10 copies cost here? Taak pencil - not that - they are 5 kopecks, lineage, circle, scissors? They are not black!

Here my eyes strike into the pair of shoe ropes. Black for 10 copies. Nearby white at the same price, a little further - red, but there are no green and blue, but they don't need me?

And here I am happy to go home with ten pairs of black robes. Black is the most important thing!

The sun is shining, the mood is good, I go and think, "How clever and clever I am! I forgot, but by logical reasoning I remembered. You are never stupid!”

I was happy, until I got home.