“The channels of human mental development… are circuitous and variable. Rather than specify a single trait, human genes prescribe the capacity to develop a certain array of traits.”

Source: Seth, Dreams & Projections of Consciousness, (1986), p. 159, quoting from Seth Session 26

Source: Law and Authority (1886), I
Context: Men who long for freedom begin the attempt to obtain it by entreating their masters to be kind enough to protect them by modifying the laws which these masters themselves have created!
But times and tempers are changed. Rebels are everywhere to be found who no longer wish to obey the law without knowing whence it comes, what are its uses, and whither arises the obligation to submit to it, and the reverence with which it is encompassed. The rebels of our day are criticizing the very foundations of society which have hitherto been held sacred, and first and foremost amongst them that fetish, law.
The critics analyze the sources of law, and find there either a god, product of the terrors of the savage, and stupid, paltry, and malicious as the priests who vouch for its supernatural origin, or else, bloodshed, conquest by fire and sword. They study the characteristics of law, and instead of perpetual growth corresponding to that of the human race, they find its distinctive trait to be immobility, a tendency to crystallize what should be modified and developed day by day.

Transhumanism (1957)
Context: We are beginning to realize that even the most fortunate people are living far below capacity, and that most human beings develop not more than a small fraction of their potential mental and spiritual efficiency. The human race, in fact, is surrounded by a large area of unrealized possibilities, a challenge to the spirit of exploration.

Books, Confessions of a Conjuror (2010)

Page 202
Ender's Game series, First Meetings in the Enderverse (2003), Investment Counselor

Source: Guilty Pleasures

"Life Ahead: On Learning and the Search for Meaning" (1963), Introduction http://www.jkrishnamurti.com/krishnamurti-teachings/view-text.php?tid=38&chid=331, J.Krishnamurti Online, JKO Serial No. 261, p. 13, 2005 edition
1960s
Context: Learning in the true sense of the word is possible only in that state of attention, in which there is no outer or inner compulsion. Right thinking can come about only when the mind is not enslaved by tradition and memory. It is attention that allows silence to come upon the mind, which is the opening of the door to creation. That is why attention is of the highest importance. Knowledge is necessary at the functional level as a means of cultivating the mind, and not as an end in itself. We are concerned, not with the development of just one capacity, such as that of a mathematician, or a scientist, or a musician, but with the total development of the student as a human being. How is the state of attention to be brought about? It cannot be cultivated through persuasion, comparison, reward or punishment, all of which are forms of coercion. The elimination of fear is the beginning of attention. Fear must exist as long as there is an urge to be or to become, which is the pursuit of success, with all its frustrations and tortuous contradictions. You can teach concentration, but attention cannot be taught just as you cannot possibly teach freedom from fear; but we can begin to discover the causes that produce fear, and in understanding these causes there is the elimination of fear. So attention arises spontaneously when around the student there is an atmosphere of well-being, when he has the feeling of being secure, of being at ease, and is aware of the disinterested action that comes with love. Love does not compare, and so the envy and torture of "becoming" cease.

Variant: .. the most identifying trait of humanity is our ability to be inhumane to one another.
Source: Odd Thomas