The man who has no imagination has no wings. --

Related:

• The man who views the world at 50 the same as he did at 20 has wasted 30 years of his life.
  Muhammad...
• He who has imagination without learning has wings but
  no feet...
• He who has a thousand friends has not a friend to spare,
  and he who has one enemy shall meet him everywhere...
• There are more pleasant things to do than beat up people.
  Muhammad...