He who labors diligently need never despair; for all things are accomplished by diligence and labor.
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.
Our problems are man-made, therefore they may be solved by man. And man can be as big as he wants. No problem of human destiny is beyond human beings.
Sometimes I've believed as many as six impossible things before breakfast.
It is common sense to take a method and try it. If it fails, admit it frankly and try another. But above all, try something.
The truth is always a compound of two half- truths, and you never reach it, because there is always something more to say.
There is still a difference between something and nothing, but it is purely geometrical and there is nothing behind the geometry.