History records the words of many who said it couldn't be done.
It is easier to say:
There's always tomorrow! Sure!
'It's so much easier to give up on a dream than to make it a reality.'
I agree with WhyNotStartToday, but this sentence doesn't seem to reflect the actual reasoning or at least not the actual feeling about NotDoingItNow?. To me the reasoning goes more like:
'It's so much easier to let the dream stay a dream, than to discover its harsh reality.'
or more completely:
It's so much easier to give up on your dream, than to discover how much will be involved in making it real and then committing oneself to that involvement.