A humankind abandoned in its ...

A humankind abandoned in its earlier formative stage becomes its own greatest threat to survival.
A humankind abandoned in its earlier formative stage becomes its own greatest threat to survival.

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Courage - a perfect sensibility of the measure of danger, and a mental willingness to endure it.
 William Tecumseh Sherman
The same mentality that leads to environmental despoliation, environmental destruction, also leads to damage to people.
 Naomi Oreskes
You can't break poor people mentality. Once you grow up poor, you don't take anything for granted. It can have the negative side also because you can never truly be relaxed.
 Will Smith
The man with the average mentality, but with control, with a definite goal, and a clear conception of how it can be gained, and above all, with the power of application and labor, wins in the end.
 William Howard Taft
I think society had to grow up to the mentality of Peter Norman.
 John Carlos

Quotes from the same author

Everyone in the world ought to do the things for which he is specially adapted. It is the part of wisdom to recognize what each one of us is best fitted for, and it is the part of education to perfect and utilize such predispositions. Because education can direct and aid nature but can never transform her.
At birth, the child leaves a person - his mother's womb - and this makes him independent of her bodily functions. The baby is next endowed with an urge, or need, to face the out world and to absorb it. We might say that he is born with 'the psychology of world conquest.' By absorbing what he finds about him, he forms his own personality.
This is education, understood as a help to life; an education from birth, which feeds a peaceful revolution and unites all in a common aim, attracting them as to a single centre. Mothers, fathers, politicians: all must combine in their respect and help for this delicate work of formation, which the little child carries on in the depth of a profound psychological mystery, under the tutelage of an inner guide. This is the bright new hope for mankind.
To give a child liberty is not to abandon him to himself.
Children must grow not only in the body but in the spirit, and the mother longs to follow the mysterious spiritual journey of the beloved one who to-morrow will be the intelligent, divine creation, man.