Approach each new problem not with a view of finding what you hope will be there, but to get the truth.
Buy straw hats in the wintertime. Summer will surely come.
Always do one thing less than you think you can do.
Science has taught us how to put the atom to work. But to make it work for good instead of for evil lies in the domain dealing with the principles of human dignity. We are now facing a problem more of ethics than of physics.
Making a success of the job at hand is the best step toward the kind you want.
Now is always the hardest time to invest.