Which conservationist gave the slogan 'the use of natural resources for the greatest number for the longest time'?

Gifford Pinchot gave the slogan"the use of

Natural Resources,for the greatest number,for the longest time"

Gifford Pinchot (August 11, 1865 - October 4, 1946) was an American

forester and politician. He served as the first Chief of the United

States Forest Service from 1905 until his firing in 1910, and was

the 28th Governor of Pennsylvania, serving from 1923 to 1927, and

again from 1931 to 1935.