All 3 Uses of

advocate

in

Up From Slavery: An Autobiography

... I explained that my theory of education for the Negro would not, for example, confine him for all time to farm life ... but that, if he succeeded in this line of industry, he could lay the foundations upon which his children and grand-children could grow to higher and more important things in life. Such, in brief, were some of the views I advocated in this first address dealing with the broad question of the relations of the two races, and since that time I have not found any reason for changing my views on any important point.
Chpt 13 *

advocated = publicly supported (argued for)

In my early life I used to cherish a feeling of ill will toward any one who spoke in bitter terms against the Negro, or who advocated measures that tended to oppress the black man or take from him opportunities for growth in the most complete manner.†
Chpt 13

Now, whenever I hear any one advocating measures that are meant to curtail the development of another, I pity the individual who would do this.†
Chpt 13

Definition:

(advocate as in: to advocate)
to recommend or publicly support (someone or something)