John Kennedy actually said...

It is essential that these decisions be made only after the most thorough evaluation of all the probable benefits and costs to the Governmen...

We cannot now reclaim the opportunities we lost in the past

I do not expect a fifth postwar recession to interrupt our progress in 1963

It is desirable that we hold to or better the schedule laid down in 1961, and reach firm decisions as soon as practicable in 1963 on future ...