Many advantages … may be gained through the establishment of trade commissions, national and state. At first, we should be conservative in giving additional powers to these commissions. The powers given should be based upon the same principles that have been applied in the pure-food laws, and in the control of the public utilities. The American people always move slowly in these matters, and step by step. I should not expect that these trade commissions, if created, would at once be granted all the powers which they would finally exercise. In this matter I should expect the same slow development to take place that has occurred regarding the commissions which control the public utilities.