Problems are not stop signs, they are guidelines.
The dog that trots about finds a bone.
The wise does at once what the fool does at last.
Never complain and never explain.
Do not weep do not wax indignant. Understand.
Leap, and the net will appear.
Know or listen to those who know.
Who seeks shall find.
By failing to prepare, you are preparing to fail.
Go for it now. The future is promised to no one.
I think that somebody with the resources and innovation and the idea is going to come out of nowhere and come up with a successful space travel program.