Abrahan Lincoln was a great man, hence he had to be murdered by insecure and ignorante people...
He wrote this to his son's teacher and it is trully remarkable!
And mybe the reason I trust Menkind as a whole, is because first I trust myself.

He will have to learn, I know,
that all men are not just,
all men are not true.
But teach him also that
for every scoundrel there is a hero;
that for every selfish Politician,
there is a dedicated leader...
Teach him for every enemy there is a
friend,

Steer him away from envy,
if you can,
teach him the secret of
quiet laughter.

Let him learn early that
the bullies are the easiest to lick... Teach him, if you can,
the wonder of books...
But also give him quiet time
to ponder the eternal mystery of birds in the sky,
bees in the sun,
and the flowers on a green hillside.

In the school teach him
it is far honourable to fail
than to cheat...
Teach him to have faith
in his own ideas,
even if everyone tells him
they are wrong...
Teach him to be gentle
with gentle people,
and tough with the tough.

Try to give my son
the strength not to follow the crowd
when everyone is getting on the band wagon...
Teach him to listen to all men...
but teach him also to filter
all he hears on a screen of truth,
and take only the good
that comes through.

Teach him if you can,
how to laugh when he is sad...
Teach him there is no shame in tears,
Teach him to scoff at cynics
and to beware of too much sweetness...
Teach him to sell his brawn
and brain to the highest bidders
but never to put a price-tag
on his heart and soul.

Teach him to close his ears
to a howling mob
and to stand and fight
if he thinks he's right.
Treat him gently,
but do not cuddle him,
because only the test
of fire makes fine steel.

Let him have the courage
to be impatient...
let him have the patience to be brave.
Teach him always
to have sublime faith in himself,
because then he will have
sublime faith in mankind.

This is a big order,
but see what you can do...
He is such a fine fellow,
my son!

CARTA DE ABRAHAN LINCOLN AO PROFESSOR DO SEU FILHO:
"Caro professor, ele terá de aprender que nem todos os homens são justos, nem todos são verdadeiros, mas, por favor, diga-lhe que, para cada vilão há um herói, que para cada egoísta, há também um líder dedicado, ensine-lhe, por favor, que para cada inimigo haverá também um amigo, ensine-lhe que mais vale uma moeda ganha que uma moeda encontrada ensine-o a perder, mas também, a saber, gozar da vitória, afaste-o da inveja e dê-lhe a conhecer a alegria profunda do sorriso silencioso, faça-o maravilhar-se com os livros, mas deixe-o também perder-se com os pássaros no céu, as flores no campo, os montes e os vales.
Nas brincadeiras com os amigos, explique-lhe que a derrota honrosa vale mais que a vitória vergonhosa, ensine-o a acreditar em si, mesmo se sozinho contra todos.
Ensine-o a ser gentil com os gentis e duro com os duros, ensine-o a nunca entrar no comboio simplesmente porque os outros também entraram.
Ensine-o a ouvir todos, mas, na hora da verdade, a decidir sozinho, ensine-o a rir quando estiver triste e explique-lhe que por vezes os homens também choram.
Ensine-o a ignorar as multidões que reclamam sangue e a lutar só contra todos, se ele achar que tem razão.
Trate-o bem, mas não o mime, pois só o teste do fogo faz o verdadeiro aço, deixe-o ter a coragem de ser impaciente e a paciência de ser corajoso.
Transmita-lhe uma fé sublime no Criador e fé também em si, pois só assim poderá ter fé nos homens.
Eu sei que estou pedindo muito, mas veja o que pode fazer, caro professor."

Abraham Lincoln, 1830