On Meditation: Selected Verses for Mindful Practice

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"Rahula, develop meditation that is like water. ... Just as people wash clean things and dirty things, excrement, urine, spittle, pus, and blood in water, and the water is not horrified, humiliated, and disgusted because of that, so too, Rahula, develop meditation that is like water."

—Sutta 62, verse 14, p. 530

Source: Maha-Rahulovada Sutta: The Greater Exhortation to Rahula

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"Wisdom is born of meditation; without meditation wisdom is lost. Knowing this one should conduct oneself so that wisdom may increase."

—Dhammapada, verse 282

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"Just as rain breaks through

An ill-thatched house,

So passion penetrates

An undeveloped mind."

—Dhammapada, chapter 1, verse 13