I broke your 2-line rule for some of these out of necessity.
MN 19
Bhikkhus, whatever a bhikkhu frequently thinks and ponders upon, that will become the inclination of his mind.
MN 22
Bhikkhus, that one can engage in sensual pleasures without sensual desires, without perceptions of sensual desire, without thoughts of sensual desire – that is impossible.
MN 28
Friends, just as when a space is enclosed by timber and creepers, grass, and clay, it comes to be termed just ‘house’, so too, when a space is enclosed by bones and sinews, flesh and skin, it comes to be termed just ‘material form’.
MN 50
There has never been found a fire
Which intends, ‘Let me burn the fool,’
But a fool who assaults a fire
Burns himself by his own doing.
SN 12.52
Bhikkhus, when one dwells contemplating gratification in things that can be clung to, craving increases.
Bhikkhus, when one dwells contemplating danger in things that can be clung to, craving ceases.
SN 14.35
One who seeks delight in suffering, I say, is not freed from suffering.
One who does not seek delight in suffering, I say, is freed from suffering.
SN 35.91
For whatever one conceives, bhikkhus, whatever one conceives in, whatever one conceives from, whatever one conceives as ‘mine’ – that is otherwise. The world, becoming otherwise, attached to existence, seeks delight only in existence.
SN 35.101
Whatever is not yours: let go of it. Your letting go of it will be for your long-term happiness & benefit.
AN 8.8
“Whatever is well spoken is all the word of the Blessed One, the Arahant, the Perfectly Enlightened One. I myself and others derive our good words from him.”
Dhp 118
Should a person do good, let him do it again and again. Let him form a desire for it, for blissful is the accumulation of good.
Dhp 211
Therefore, hold nothing dear, for separation from the dear is painful. There are no bonds for those who have nothing beloved or unloved.
Dhp 365
One should not despise what one has received, nor envy the gains of others. The monk who envies the gains of others does not attain to meditative absorption.