“Human believe what they want to believe and individual could believe according to his mind that why human never has any agreement on one ideology.”

Variant: And this I believe: that the free, exploring mind of the individual human is the most valuable thing in the world. And this I would fight for: the freedom of the mind to take any direction it wishes, undirected.
Source: East of Eden (1952)
Context: And this I believe: that the free, exploring mind of the individual human is the most valuable thing in the world. And this I would fight for: the freedom of the mind to take any direction it wishes, undirected. And this I must fight against: any religion, or government which limits or destroys the individual. This is what I am and what I am about.
Context: Our species is the only creative species, and it has only one creative instrument, the individual mind and spirit of a man. Nothing was ever created by two men. There are no good collaborations, whether in art, in music, in poetry, in mathematics, in philosophy. Once the miracle of creation has taken place, the group can build and extend it, but the group never invents anything. The preciousness lies in the lonely mind of a man.
And now the forces marshaled around the concept of the group have declared a war of extermination on that preciousness, the mind of man. By disparagement, by starvation, by repressions, forced direction, and the stunning blows of conditioning, the free, roving mind is being pursued, roped, blunted, drugged. It is a sad suicidal course our species seems to have taken.
And this I believe: that the free, exploring mind of the individual human is the most valuable thing in the world. And this I would fight for: the freedom of the mind to take any direction it wishes, undirected. And this I must fight against: any religion, or government which limits or destroys the individual. This is what I am and what I am about. I can understand why a system built on a pattern must try to destroy the free mind, for it is the one thing which can by inspection destroy such a system. Surely I can understand this, and I hate it and I will fight against it to preserve the one thing that separates us from the uncreative beasts. If the glory can be killed, we are lost.

Credo (1965)
Context: I believe that if an individual is not on the path to transcending his society and seeing in what way it furthers or impedes the development of human potential, he cannot enter into intimate contact with his humanity. If the tabus, restrictions, distorted values appear "natural" to him, this is a clear indication that he cannot have a real knowledge of human nature.
I believe that society, while having a function both stimulating and inhibiting at the same time, has always been in conflict with humanity. Only when the purpose of society is identified with that of humanity will society cease to paralyze man and encourage his dominance.

"Pamela Geller speaks to the Sugar Land Tea Party in Sugar Land, Texas" https://www.youtube.com/watch?v=XLzlQ7WrvfQ&t=0h28m21s, Sugar Land, Texas

They judged that, indisputably, by the study of these disciplines not only was the tongue refined, but also the wildness and barbarity of people’s minds was amended.
Source: Praise of Eloquence (1523), p. 66

"The Moral Problem"
1920s, Why I Am Not a Christian (1927)

Pearls of Wisdom

Rocky Mountain News column, 2000

Source: Novels, Anonymous (2013), Chapter 1