First of all, people act in a charming manner when they try to deceive. This charm can certainly fool many people. Most noteworthy, if somebody is being nice to you does not mean they have your best interests in mind. Moreover, they may behave in a pleasant way but it does not mean they are telling the truth. The idea of all that glitters could evoke thoughts of splendor or superficial beauty. However, people must not allow themselves to be blinded by material appearances. Most noteworthy, people must look into the core of things and make informed judgments about them. One must stay rational and not be deceived by material greed. Furthermore, a person’s senses may perceive something to be glitter. However, it may turn out to be not gold when a person uses rational logical thinking. Hence, one must always be rational and logical when it comes to decisions. The phrase ‘All that glitters is not gold’ expresses in a beautiful metaphor, the idea that the things that seem most valuable on the surface – like gold – are often deceptive: that frequently, the more modest-looking things in life have the kind of substance that makes them more valuable. ‘All that glitters is not gold’ is an expression that can be dated back long ago to the 12th century. In 1175 French monk Alain de Lille wrote "Do not hold everything gold that shines like gold"