The most exciting phrase to hear in science, the one that heralds new discoveries, is not 'Eureka!' (I found it!) but 'That's funny ...'
You cannot be mad at somebody who makes you laugh - it's as simple as that.
Nothing is as certain as that the vices of leisure are gotten rid of by being busy.
For the most part, fear is nothing but an illusion. When you share it with someone else, it tends to disappear.
Keep on going and the chances are you will stumble on something, perhaps when you are least expecting it. I have never heard of anyone stumbling on something sitting down.
The toughest question has always been, "How do you get your ideas?" How do you answer that? It's like asking runners how they run, or singers how they sing. They just do it!
To be able to fill leisure intelligently is the last product of civilization, and at present very few people have reached this level.