Ignorance is a knowledge illiteracy.

Curiosity is a call from knowledge.

Size does matter. Nano even better.

Prehistory of mankind is way too horrible to be remembered.
But if we choose to ignore it, then we'll be doomed to repeat it.

For millenia scientists always try to figure out the size of this vast universe. One way to figure it out is first to find the smallest single thing which constructs this universe. At time they found it, the size of this universe can be measured for sure.

Mind of a loving heart is the fountain of knowledge.