Ziehl%e2%80%93neelsen Stain

Famous quotes containing the word stain:

    For wisdom is the property of the dead,
    A something incompatible with life; and power,
    Like everything that has the stain of blood,
    A property of the living; but no stain
    Can come upon the visage of the moon
    When it has looked in glory from a cloud.
    William Butler Yeats (1865–1939)