Quotes:

Zen is to transcend life and death (all dualism), to truly realize that the entire universe is the "True Human Body" through the discipline of "mind and body in oneness." Besides this actual realization, there is nothing else. "Zen without the accompanying physical experience is nothing but empty discussion. Martial Ways without truly realizing the mind is nothing but beastly behavior.
- Omori Sogen, from the Chozen-Ji Canon

Emancipate yourself from mental slavery, none but ourselves can free our minds.
- Bob Marley

Yoga without the control of mind is mere acrobatics.
- BKS Iyengar

It is spiritless to think that you cannot attain to that which you have seen and heard the masters attain. The masters are men. You are also a man. If you think that you will be inferior in doing something, you will be on that road very soon.
- Yamamoto Tsunetomo, Hagakure translated by William Scott Wilson
(There are many many many great pieces of wisdom in this book, I love it!)

Do not believe something unless you experience it for yourself.
- The Buddha

Buddhism is like a raft. Once you cross the river (of enlightenment), throw the raft away!
- The Buddha

In the pursuit of learning, one knows more every day;
in the pursuit of the way, one does less every day.
One does less and less until one does nothing at all,
and when one does nothing at all, there is nothing that is undone.
- Lao Tzu: Book Two, verse 108. translated by D.C. Lau
(another book with many great pieces of wisdom but less concrete than the Hagakure)

We are told that, as in the old days, those who copy sutras and those who give sermons do what they do according to convention, and that rare are those who are enlightened of the "mind of the mind."
- Yagyu Munenori, Heihou Kaden Sho translated by Hiroaki Sato
note: "mind of the mind" is not a typo, it means something like "true nature of the mind"

Buddhism has the characteristics of what would be expected in a cosmic religion for the future: it transcends a personal God, avoids dogmas and theology; it covers both the natural & spiritual, and it is based on a religious sense aspiring from the experience of all things, natural and spiritual, as a meaningful unity.
- Albert Einstein

Me, I am praised as a general of Zen,
Tasting life and enjoying sex to the fullest!
- Ikkyu Sojun