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
Courage is resistance to fear, mastery of fear, not absence of fear. Mark Twain
If fear is cultivated it will become stronger, if faith is cultivated it will achieve mastery. John Paul Jones
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
