Life is short and the time of ...

Life is short and the time of death is uncertain; so apply yourself to meditation. Avoid doing evil, and acquire merit, to the best of your ability, even at the cost of life itself. In short: Act so that you have no cause to be ashamed of yourselves and hold fast to this rule.
 Milarepa

Quotes from the same author

In horror of death, I took to the mountains - again and again I meditated on the uncertainty of the hour of death, capturing the fortress of the deathless unending nature of mind. Now all fear of death is over and done.
 Milarepa
Deep in the wild mountains, is a strange marketplace,where you can trade the hassle and noise of everyday life, for eternal Light.
 Milarepa
Accustomed long to contemplating love and compassion I have forgotten all difference between myself and others
 Milarepa
All worldly pursuits have but one unavoidable and inevitable end, which is sorrow; acquisitions end in dispersion; buildings in destruction; meetings in separation; births in death. Knowing this, one should, from the very first, renounce acquisitions and storing-up, and building, and meeting; and, faithful to the commands of an eminent Guru, set about realizing the Truth. That alone is the best of religious observances.
 Milarepa
He who knows that all things are his mind, That all with which he meets are friendly, Is ever joyful.
 Milarepa