Here is the secret of inspiration: Tell yourself that thousands and tens of thousands of people, not very intelligent and certainly no more intelligent than the rest of us, have mastered problems as difficult as those that now baffle you.
Brains aren't everything, but they're important.
Success seems to be largely a matter of hanging on after others have let go.
To make yourself understood you have to think plain and write plain.
The right man can make a good job out of any job.
One of the indictments of civilizations is that happiness and intelligence are so rarely found in the same person.