Knowledge illuminates any problem.

A man's vanity often goes hand in hand with his lack of knowledge.

The development of human civilization over the course of millennia was really fascinating. Let us imagine, however, how high a level of development could have been reached if all amazing ideas of the great minds of the past had been realized. Let us consider, for example, some ideas of Nikola
Tesla that have not been implemented as of yet.

If you cannot solve a problem, ask someone who knows.

A wise man is humble, knowing he actually doesn't know much.

Acquiring knowledge is the most fruitful effort.