If you don't like the road you're walking, start paving another one.  Dolly Parton

I thought I had my life mapped out, but then I remembered what my non-linear equations professor once told me - always account for variable change.  Ben Campbell
 
Good things do not come easy.  The road is lined with pitfalls.  Desi Arnaz

Still round the corner there may wait, a new road or a secret gate.  J.R.R. Tolkien
 
Sometimes the road is less traveled for a reason.  Jerry Seinfeld
 
They will say you are on the wrong road - if it is your own.   Antonio Porchia
 
People take the longest possible paths, digress to numerous dead ends, and make all kinds of mistakes.   Then historians come along and write summaries of this mess, non-linear process and make it appear like a simple, straight line.   Dean Kamen
 
Human history is highly non-linear and unpredictable.  Michael Shermer
 
The road leading you from a goal does not separate you from the destination; it is essentially a part of it.  Charles de Lint