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'?
How can you be 'fr_end' without 'i'?
"I" am very important.. But this "i" can never achieve "s_ccess" without "U"