In his book Mere Christianity CS Lewis (which I've recently read) says that Christ (as we know him from the bible) himself claimed to be divine, which would mean that if we follow him then we must consider him to be more than simply a wise-man, which is how many secular people imagine him, and some religious folk too...
Based on this, he said there were three possibilities: That the Jesus (as we know him from the bible) is either Lord, Liar, or Lunatic and that "wise man" was not an option as he explicitly said he was divine, which would rule-out "wise man"
Lord - he was what he said he was - divine
Liar - he was a scoundrel and was taking everyone for a ride, by falsely claiming to be divine
Loon - he claimed to be divine because he was insane
Based on this, he said there were three possibilities: That the Jesus (as we know him from the bible) is either Lord, Liar, or Lunatic and that "wise man" was not an option as he explicitly said he was divine, which would rule-out "wise man"
Lord - he was what he said he was - divine
Liar - he was a scoundrel and was taking everyone for a ride, by falsely claiming to be divine
Loon - he claimed to be divine because he was insane