God values deeds according to their intentions. For it is said, "The Lord grant unto you according to your heart" (Ps. 19:5) ... Therefore, whoever wants to do something but can't is considered as having done it by God, who sees the intentions of our hearts. This applies to both good and evil deeds alike.

Do not attempt to benefit by rebukes one who boasts of his virtues, for he loves to display himself can not be a lover of truth.

It is better to pray with good will for our neighbor, rather than to denounce him for every sin.

As water and fire oppose one another when combined, so are self-justification and humility opposed to one another.

Every sin that is left without repentance is a sin unto death, for which if even a saint shall pray, he shall not be heard.

Consistently pray in all things, so that you might not do anything without the help of God ... Whoever does or busies himself with anything without prayer does not succeed in the end. Concerning this, the Lord said: "Without Me you can't do anything". (John 15:5)

Whatever we do or say without prayer always ends up either sinful or harmful and convicts us through the deeds in some mysterious way.