They say we use only 10% of our brain capacity. Wrong! Humanity uses only 10% of our brain capacity.
It is even worse than that: humanity uses 10% of our brain capacity, but often these are the wrong 10%. Let's take for example Alfred Krupa, a Croatian artist of Polish origin. Humanity praises him as the first human who painted:
a) with oil paints on paper, and
b) underwater,
but not as the human who invented the suitcase on wheels.