General:
* शुचि: स्वभावो मानवानाम्। (Shuchi: svabhāvo mānavānām.)
* Meaning: Cleanliness is the nature of humans.
* शुद्धे सर्वं सुखं भवेत्। (Shuddhe sarvam sukham bhavet.)
* Meaning: In purity, all happiness resides.
* शुचिनां च मन: शुचि। (Shuchinām cha manah shuchi.)
* Meaning: The mind of the pure is pure.
Specific to hygiene:
* न च सर्वं नमस्कारे, न च सर्वं उपवास:। शुचिरेवास्तु शरीरं, ततः शान्तिर्भवेत्। (Na cha sarvam namaskāre, na cha sarvam upavāsah. Shuchirevāstu sharīram, tatah śāntibhāvet.)
* Meaning: Not all is in worship, nor in fasting. Let the body be clean, then there will be peace.
* शुचिः शरीरं शिवम् करोति। (Shuchi: sharīram shivam karoti.)
* Meaning: A clean body makes one auspicious.
On the importance of cleanliness:
* शुचि: काय: शुचि: मन: शुचि: वाक् शुचि:। एतेषु शुचि: सर्वं शिवम् करोति। (Shuchi: kāya: shuchi: manah shuchi: vāg shuchi. Eteshu shuchi: sarvam shivam karoti.)
* Meaning: A clean body, a clean mind, and clean speech; all of these make one auspicious.
* शुचि: सर्वे प्रतिग्राह्ये, शुचि: सर्वे निवेदने। (Shuchi: sarve pragrāhye, shuchi: sarve nivedane.)
* Meaning: Everything offered should be clean, everything dedicated should be clean.
These are just a few examples, and there are many more verses and sayings in Sanskrit that emphasize the importance of cleanliness. You can find more by searching for keywords like "शुचि" (shuchi) or "स्वच्छता" (svacchata).
It is important to note that cleanliness in Sanskrit is not limited to physical hygiene but also encompasses mental and spiritual purity.