Each type of knowledge has value; however, from an engineering point of view, practical knowledge seems to be more valuable than theoretical knowledge.

Spreading knowledge is the most effective weapon for defeating ignorance.

The universal mission of all educators is to let the torch of knowledge illuminate the world.

Understanding how little we know is crucial to gaining knowledge.

Acquiring knowledge through the centuries has influenced human society more than all other factors.

In general, people accumulate knowledge gradually over a long period of time. However, there are extraordinary people all around us, who are capable of accumulating impressive amounts of knowledge within a relatively short period of time. Nevertheless, even the greatest genius possesses only a small fraction of all knowledge known by mankind. Finally, the following question arises: how large is all the existing knowledge in comparison to the space of ignorance?