Enlightenment is like the moon reflected on the water.

The moon does not get wet, nor is the water broken.

Although its light is wide and great,

The moon is reflected even in a puddle an inch wide.

The whole moon and the entire sky

Are reflected in one dewdrop on the grass.

Good and evil have no self nature;
Holy and unholy are empty names;
In front of the door is the land of stillness and quiet;
Spring comes, grass grows by itself.
Master Seung Sahn

All sentient beings are essentially Buddhas.
As with water and ice, there is no ice without water;
apart from sentient beings, there are no Buddhas.
Not knowing how close the truth is,
we seek it far away
--what a pity!
Hakuin Ekaku Zenji

When mortals are alive, they worry about death.
When they're full, they worry about hunger.
Theirs is the Great Uncertainty.

But sages don't consider the past.
And they don't worry about the future.
Nor do they cling to the present.
And from moment to moment they follow the Way.
Bodhidharma

Whether you are going or staying or sitting or lying down,
the whole world is your own self.
You must find out
whether the mountains, rivers, grass, and forests
exist in your own mind or exist outside it.
Analyze the ten thousand things,
dissect them minutely,
and when you take this to the limit
you will come to the limitless,
when you search into it you come to the end of search,
where thinking goes no further and distinctions vanish.
When you smash the citadel of doubt,
then the Buddha is simply yourself.
Daikaku

Not believing in anything I just sit,
listening to my breathing
After thirty years
It still goes in and out.
Albert Coelho

The most important thing is to find out
what is the most important thing.

 Shunryu Suzuki

Source: viewonbuddhism.org