Throughout the day, put the teachings into practice. In the evening examine what you have done, said, and thought during the day. Whatever was positive, dedicate the merit to all beings and vow to improve on it the next day. Whatever was negative, confess and promise to repair it. In this way, the best practitioners progress from day to day, the middling practitioners from month to month, and the least capable from year to year.

Dilgo Khyentse Rinpoche
from the book The Hundred Verses of Advice: Tibetan Buddhist Teachings on What Matters Most
translated by Padmakara Translation Group
source: http://www.rinpoche.com/quotes/diilgo.htm
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Further quotes from the book The Hundred Verses of Advice:
- Abandon negative friendships
- Free of being caught by anything at all
- Three essential points
- Being near a spiritual teacher
- Flying off into the bardo
- Happiness and suffering
- Rather than being trapped by your perceptions
- Contemplating the defects of samsara
- Dwell in the simplicity of the present moment
- Nothing to be gained or lost
- Love and compassion for all
- Devotion is the fare on our journey toward enlightenment
- How illness can teach us compassion
- You won’t live forever
- Use riches in a constructive way
- Put on the armor of diligence
- The mind is free of any true reality
- The most profound spiritual practice
- There is never any time to spare
- The Dharma is the best way of using your life