Is there anything so certain?!

Is there anything that is so certain, it cannot be disproved?! ...

I can only think of one, and that is the inevitability of change. The one true Constant in life. Change can take many variables, but usually we never or rarely see it as it goes along because we are too busy chasing other things. We get so caught up with mundane things that when we finally realize what was once the most important has changed, we almost give up on life.

Focus I believe is the only remedy to the aftermath of unexpected change. If you always have a goal, maintain that goal and strive to achieve; then change becomes just a word.