For good or for ill, air mastery is today the supreme expression of military power and fleets and armies, however vital and important, must accept a subordinate rank Winston churchill
Give a boy address and accomplishments and you give him the mastery of palaces and fortunes where he goes. Ralph Waldo Emerson
Only one who devotes himself to a cause with his whole strength and soul can be a true master. For this reason mastery demands all of a person. Albert Einstein
We talk of our mastery of nature, which sounds very grand; but the fact is we respectfully adapt ourselves, first, to her ways. Clarence Day