How can you "SM_LE" without "I"

How can you        "SM-LE" Without "I"? How can you be  "F_NE" Without"I"? How can you  W_SH Without"I"?? "I"am very important! But this 'I' Can never achieve ...... S_CCESS Without  'U'....And that makes 'U' more imp than'I ...