My favorites:
A President needs political understanding to run the government, but he may be elected without it.
Harry S. Truman
Experience has shown how deeply the seeds of war are planted by economic rivalry and social injustice.
Harry S. Truman
In reading the lives of great men, I found that the first victory they won was over themselves... self-discipline with all of them came first.
Harry S. Truman
It is understanding that gives us an ability to have peace. When we understand the other fellow's viewpoint, and he understands ours, then we can sit down and work out our differences.
Harry S. Truman
Men make history and not the other way around. In periods where there is no leadership, society stands still. Progress occurs when courageous, skillful leaders seize the opportunity to change things for the better.
Harry S. Truman
Most of the problems a President has to face have their roots in the past.
Harry S. Truman
Those who want the Government to regulate matters of the mind and spirit are like men who are so afraid of being murdered that they commit suicide to avoid assassination.
Harry S. Truman
To hell with them. When history is written they will be the sons of bitches - not I.
Harry S. Truman
When you have an efficient government, you have a dictatorship.
Harry S. Truman
You can always amend a big plan, but you can never expand a little one. I don't believe in little plans. I believe in plans big enough to meet a situation which we can't possibly foresee now.
Harry S. Truman
The list ended up longer than I expected it to be.