Atheism is a mental disorder ( St. Nektarios )

Atheism is a mental disorder: it is a terrible ailment of the soul that is difficult to cure. Atheism is a passion that severely oppresses whomever it seizes. It holds in store many misfortunes for its captive, and becomes harmful not only for him but also for others who come into contact with him.

Atheism denies the existence of God. It denies that there is a divine Creator of the universe. It denies
God’s providence, His wisdom, His goodness, and, in general, His divine qualities. Atheism teaches a falsehood to its followers and contrives false theories concerning the creation of the universe. It professes, as Pythia upon a tripod,1 that the creation is an outcome of chance, that it is perpetuated and preserved through purposeless,
random interactions, that its splendor transpired spontaneously over time, and that the harmony, grace, and beauty witnessed in nature are inherent
attributes of natural laws.

Atheism detracts from God, Whom it has denied, His divine characteristics, and, instead, bestows them and His creative power to lifeless and feeble matter. Atheism freely proclaims matter to be the cause of all things, and it deifies matter in order to deny the existence of a superior Being, of a supreme, creative Spirit Who cares for and sustains all things. On account of disbelief, matter becomes the only true entity; whereas the spirit becomes non-existent.

For atheism, the spirit and the soul are egotistical inventions of man, concocted to satisfy his vainglory. Atheism denies man’s spiritual nature. It drags man down from the lofty height where he has been placed by the Creator’s power and grace, and lowers him amongst the rank of irrational animals, which he accepts as ancestors of his distinguished and noblelineage. Atheism does all this in order to bear witness to the words of the Psalm: “Man, being in honor, did not understand; he is compared to the mindless animals, and is become like unto them” (Ps. 48:20).

Atheism detracts faith, hope, and love from the
world, these life-giving sources of true happiness for man, it expels God’s righteousness from the world, and denies the existence of God’s providence and succor. Atheism accepts the laws that exist in nature, yet denies Him Who has appointed these laws. Atheism seeks to lead man to an imaginary happiness; however, it abandons and deserts him in the middle of nowhere, in the valley of lamentation, barren of all heavenly goods, void of consolation from above, empty of spiritual strength, bereft of the power of moral virtue, and stripped of the only indispensable
provisions upon the earth: faith, hope, and love.

Atheism condemns poor man to perdition and leaves him standing alone as prey amidst life’s difficulties. Having removed love from within man, atheism subsequently deprives him of the love from others, and it isolates him from family, relatives, and friends.

Atheism displaces any hope of a better future and
replaces it with despair.
Atheism is awful! It is the worst of all spiritual illnesses!
This tripod was a bronze altar at Delphi, in ancient Greece, upon which the priestess of Apollo named
Pythia sat to utter oracles.

St. Nektarios

http://agapienxristou.blogspot.ca/2013/10/atheism-is-mental-disorder-st-nektarios.html

Adolescence is the most important period of life ( part 1 ) - St. Nektarios of Pentapolis

The age of adolescence is the most important and crucial time  period in man's life, because whoever someone comes to be during these years, one will subsequently continue to be throughout the remainder of life. For this reason, assiduous attention must be given to this time of life.
 
If the good or evil of adolescence was restricted only to this part of life, then the virtues or evils would have a limited impact restricted to the
individual alone. However, the virtue or evil of teenagers convey a broad and generalized quality, because this is the time of formation for the
successive generation, to whom in a short while the nation and the state will hand over the in
heritance of their forefathers and all the treasures
of the former generations. 

The upcoming generation will be entrusted with the honor and glory of the country. It will take over the administration of the nation. It will advance the arts and sciences. It will contribute to the prosperity of its citizens. It will embellish the state, the nation, and the Church. It will be the one to shape the moral character of society.
 
Consequently, if the next generation becomes virtuous, its virtue saves and preserves e
verything; if, however, it ends up being evil, its evil will destroy all things.

On account of the paramount significance of adolescence, both societies and parents have always turned their attention to and shown great concern for this age group, in order to render its teenagers into adults, fit and capable of preserving the precious heritage, which their country entrusts to them. 

 So they may by becoming virtuous people and useful citizens , increase their nation's glory and bestow honor to its name. 

St. Nektarios of Pentapolis

http://www.stnektariosmonastery.org/weeklymessage.pdf