Dear Mr. Warburg:
I understand that you and your colleagues of many years are gathered here in Washington to take counsel among yourselves for the continuance of the great and unselfish work in which you have been so long engaged and in the course of which so much devotion and so many millions have been expended.
The sad circumstances of the last few hours which have plunged the Nation into mourning make it impossible for me to welcome you other than with these lines.
I can only repeat what I have so often said to you before that the work which you have done, apart from its evident humanitarian aspects, is a large contribution to the cause of good-will between peoples. History will properly appraise your efforts for posterity--the commendation of your own consciences for today.
Sources: Public Papers of the Presidents