Effective Focal Length

Famous quotes containing the words effective and/or length:

“I am sorry to think that you do not get a man’s most effective criticism until you provoke him. Severe truth is expressed with some bitterness.”
—Henry David Thoreau (1817–1862)

“At length they all to merry London came,
To merry London, my most kindly nurse,
That to me gave this life’s first native source;
Though from another place I take my name,
An house of ancient fame.”
—Edmund Spenser (1552?–1599)