Difficulties are meant to rouse, not discourage. The human spirit is to grow strong by conflict.
You have to recognize when the right place and the right time fuse and take advantage of that opportunity. There are plenty of opportunities out there. You can't sit back and wait.
Do it now. It is not safe to leave a generous feeling to the cooling influences of the world.
If you would be known, and not know, vegetate in a village; If you would know, and not be known, live in a city.
To repeat what others have said, requires education; to challenge it, requires brains.
Fig Newton: The force required to accelerate a fig 39.37 inches per sec.
Most advances in science come when a person for one reason or another is forced to change fields.