It is easy to build a philosophy - it doesn't have to run
The price of progress is trouble.
One fails forward toward success.
A man must have a certain amount of intelligent ignorance to get anywhere.
Don't be afraid to stumble. Any inventor will tell you that you don't follow a plan far before you strike a snag. If, out of 100 ideas you get one that works, it's enough.
People see the wrongness in an idea much quicker that the rightness.