He who is drunk with compunction cannot lie

Venerable John Climacus ~ The Ladder of Divine Ascent
Step 12 ~ On Lying

¶14. He who has become merry with wine involuntarily speaks the truth on all subjects, and he who is drunk with compunction cannot lie.
The twelfth step. He who has mounted it has obtained the root of every good.

You can become a channel of profit for many

Venerable John Climacus ~ The Ladder of Divine Ascent
Step 12 ~ On Lying

¶5. When the demons see that, after the mischievous relater of jests has begun, we attempt to flee from hearing him, as it were from an infectious disease, then they try to catch us by two thoughts, suggesting to us: ‘Do not offend the story-teller,’ or: ‘Do not appear to love God more than they do.’ Be off! Do not dally, otherwise at the time of your prayer, the jokes will recur to your mind. And not only run, but even piously disconcert the bad company by offering for their general attention the thought of death and judgment. For perhaps it is better for you to be sprinkled with a few drops of vainglory, if only you can become a channel of profit for many.

The friend of silence draws near to God

Venerable John Climacus ~ The Ladder of Divine Ascent
Step 11 ~ On Talkativeness

¶5. The friend of silence draws near to God and, by secretly conversing with Him, is enlightened by God.

He who has become aware of his sins has controlled his tongue

Venerable John Climacus ~ The Ladder of Divine Ascent
Step 11 ~ On Talkativeness

¶4. He who has become aware of his sins has controlled his tongue, but a talkative person has not yet come to know himself as he should.

Cutting off thoughts

Venerable John Climacus ~ The Ladder of Divine Ascent
Step 15 ~ On Purity and Chastity

¶74. The discerning Fathers have defined that assault is one thing, converse another, consent another, captivity another, struggle another, passion so-called in the soul, another. And these blessed men define assault as a simple conception, or an image of something encountered for the first time, which has entered the heart. Converse is conversation with what has presented itself, accompanied by passion or dispassion. And consent is the bending of the soul to what has been presented to it, accompanied by delight. But captivity is a forcible and involuntary rape of the heart, or a permanent association with what has been encountered which destroys the good order of our condition. Struggle, according to their definition, is power equal to the attacking force, which is either victorious or else suffers defeat according to the soul’s desire. Passion, they say, is preeminently that which for a long time nestles with persistence in the soul, forming therein a habit, as it were, by the soul’s longstanding association with it, since the soul of its own free and proper choice clings to it. Of all these states, the first is without sin, the second not always, but the third is sinful or sinless according to the state of the contestant. Struggle is the occasion of crowns or punishments. Captivity is judged differently, according to whether it occurs at the time of prayer, or at other times; whether in things indifferent [neither good, nor bad], or in the case of evil thoughts. But passion is unequivocally condemned in every case, and demands either corresponding repentance or future punishment. Therefore, he who regards the first assault dispassionately cuts off at a single blow all the rest which follow.

Intelligent silence is the mother of prayer

Venerable John Climacus ~ The Ladder of Divine Ascent
Step 11 ~ On Talkativeness

¶3. Intelligent silence is the mother of prayer, a recall from captivity, preservation of fire, an overseer of thoughts, a watch against enemies, a prison of mourning, a friend of tears, effective remembrance of death, a depicter of punishment, a delver into judgment, a minister of sorrow, an enemy of freedom of speech, a companion of stillness, an opponent of desire to teach, increase of knowledge, a creator of divine vision, unseen progress, secret ascent.

Talkativeness is the throne of vainglory

Venerable John Climacus ~ The Ladder of Divine Ascent
Step 11 ~ On Talkativeness

¶2. Talkativeness is the throne of vainglory, on which it loves to show itself and make a display. Talkativeness is a sign of ignorance, a door to slander, an inducement to jesting, a servant of falsehood, the ruin of compunction, a creator and summoner of despondency, a precursor of sleep, the dissipation of recollection, the abolition of watchfulness, the cooling of ardour, the darkening of prayer.