Conventions are unstated agreements within a community to abide by a single way of doing things - not because there is any inherent advantage to the choice, but because there is an advantage to everyone making the same choice.
To be nobody but yourself in a world which is doing its best, night and day, to make you everybody else means to fight the hardest battle which any human being can fight, and never stop fighting.
The soft-minded man always fears change. He feels security in the status quo, and he has an almost morbid fear of the new. For him, the greatest pain is the pain of a new idea.
It is proof of a base and low mind for one to wish to think with the masses or majority, merely because the majority is the majority. Truth does not change because it is, or is not, believed by a majority of the people.
Dixit 
