Ideas change the world

It takes one person with one idea to change the world. Of course, that one person must communicate that one idea to another person who will then communicate it to another. Like a snowball or a brush fire the idea has the energy to change the world.

Opportunities for change

Opportunities present themselves constantly but without preparation they are lost. To be prepared one has to know the conditions and recognize the opportunities.
These opportunities are not generally recognizable so it takes knowledge and effort.