Human nature must be something which always remains one and the same, but which may be carried out in manifold ways.

All cultures share certain commonalities, stored in our genetic inheritance. Anthropologists tell us that all cultures distinguish colors. When they do, all cultures begin with words for white and black. If the culture adds a word for a third color, it is always red. All humans, for example, register the same basic facial expressions for fear, disgust, happiness, contempt, anger, sadness, pride, and shame. Children born without sight display emotion on their faces the same way as children born with sight. All humans divide time into past, present, and future. Almost all fear, at least at first, spiders and snakes, creatures that threatened their Stone Age ancestors. All human societies produce art. They all disapprove, at least in theory, of rape and murder. They all dream of harmony and worship God.

Human nature is the same in all professions.

It seemed to me that the human beings I met reacted pretty much the same to the same stimuli. Different idioms,yes. Circumstances and conditions having power to influence, yes. Inherent difference, no.

Human nature is universally imbued with a desire for liberty, and a hatred for servitude.

In his book Human Universals, Donald E. Brown lists traits that people in all places share. The list goes on and on. All children fear strangers and prefer sugar solutions to plain water from birth. All humans enjoy stories, myths, and proverbs. In all societies men engage in more group violence and travel farther from home than women. In all societies, husbands are on average older than their wives. People everywhere rank one another according to prestige. People everywhere divide the world between those inside their group and those outside their group. These tendencies are all stored deep below awareness.

Though good and bad men suffer alike, we must not suppose that there is no difference between the men themselves, because there is no difference in what they both suffer. For even in the likeness of the sufferings, there remains an unlikeness in the sufferers; and though exposed to the same anguish, virtue and vice are not the same thing. For as the same fire causes gold to glow brightly, and chaff to smoke; and under the same flail the straw is beaten small, while the grain is cleansed; and as the lees are not mixed with the oil, though squeezed out of the vat by the same pressure, so the same violence of affliction proves, purges, clarifies the good, but damns, ruins, exterminates the wicked.

"Human nature is always interesting... And it's curious to see how certain types always tend to act in exactly the same way." - Miss Marple, The Herb of Death, Pg. 167

Human nature will not change. In any future great national trial, compared with the men of this, we shall have as weak and as strong, as silly and as wise, as bad and as good. Let us therefore study the incidents of this, as philosophy to learn wisdom from.

Men’s natures are alike; it is their habits that separate them.

All peoples are more the same than they are different. We all mostly want the same things out of life. But those slight differences generate emotion, and emotion generates a sense of importance. Therefore, we come to perceive our differences as disproportionately more important than our similarities. And this is the true tragedy of man. That we are doomed to perpetual conflict over the slight difference.

Let us learn to live in harmony with each other — between the people of different nations, cultures, and religions, and between us and Mother Earth. We're trying to grow a family of young people who move out into the world with shared values, who understand that although we may look different, although we may have different-colored skin, have different cultures, or wear different clothes — if we're sad, we cry, and the tears are the same. If we're happy, we laugh, and the laughter is the same. And within each of us, wherever we are, beats the same human heart.

"If you inquire what the people are like here, I must answer, "The same as everywhere." The human race is but a monotonous affair. Most of them labour the greater part of their time for mere subsistence; and the scanty portion of freedom which remains to them so troubles them that they use every exertion to get rid of it. Oh, the destiny of man!"

The truth is, there is good and bad in everybody, in every nation, in every race, and in every religion. To hear someone say that all the people that belong to a certain country, race, or religion are bad — is extremely untruthful and makes the person making the statement lose credibility right away. We are all flawed and even nature is flawed. Nobody is perfect, and no country, race or religion is perfect. Duality and polarity are imprinted in everything in nature — in all humans, and even within ourselves. For example, there are those who are ignorant, and those who are wise.