The world is fast moving, those who are not able to move in the same pace are left behind.
The world gradually and unconsciously eliminates those who are not able to adapt to the changes and challenges.
Adapting to new environment and situation is a basic requirement for survival and usefulness.
You cannot best survive and function when you solely and firmly hold on to your old mentality, attitude and strategy in the fast changing world.
No matter how best your ideas, they gradually lose their relevance with time and environment.
You cannot always change situation and environment to suit your interest but you can always adapt to meet the demands of the changing times.