Theodore Roosevelt actually said...
In the judgment of the President, no more of the land herein ceded can be disposed of at said price, he may by proclamation, to be repeated in his discretion, sell from time to time the remaining lands subject to the provisions of the homestead law or otherwise as he may deem most advantageous.
Context
Proclamation 530—Partial Opening of Lands of the Sisseton, Wahpeton and Cut-Head Bands of the Sioux Indian Tribe
06/01/1904