robots designed & programmed to do certain tasks. These robots have the ability to execute tasks more efficiently than humans.

Without the "feelings" section of the Programming code

*  Feelings of course would never had existed

*  & tears would not had been let to leave the corner of our eyes

*  & smiles would not had let our mouth & cheeks to be stretched

*  & heartbeats would had been limited to certain scales when doing
    certain things

*  & opinions would had also being expressed in standard ways
    or expressions
*  & creativity would had been limited in zero levels
*  & life just wouldn't have been the same...

But "guess what? we are not robots". Whoever programmed us put "feelings", mistakenly or not, to be part of the code. & that made the whole things non standard, diverse, much more interesting, unexpected & live full! & even if sometimes those feelings hurt us especially when tasks seem to be impossible to be done, some other times the pleasure & happiness that those feelings give us cancel the not so good moments out...