How important are our sense?Watch
Are they the only source of our knowledge? and if not how do we learn/ gain knowledge?
For a sort of thought experiment, can you imagine what a human being born without any senses would think about? Personally I can't.
Knowledge of things such as colour is gained through senses but knowledge of hunger etc is innate. Sorry I can't give you better examples, it's too early in the morning for me!
But if you happen to live in a terrible environment for your tastes (and little inclination / ability to do anything about your environment) then it might be better to have fewer senses (or none at all as might be argued by someone who is depressed).
Einstein who has gone on to lose all of his senses is still Einstein which must intrinsically be worth something. It's not good enough to say 'well, we've got already his books anyway'. That would be unfeeling and disrespectful.
Whilst having a full complement of the 5 senses is not the be all and end all (as Stevie Wonder might attest) it is still not nice to regard someone as being defined by their lack of having certain senses. Their remaining senses - and more importantly their human attributes - might be higher in some cases.