Artificial Restriction Enzymes

Famous quotes containing the words artificial and/or restriction:

    Look not too long in the face of the fire, O man! Never dream with thy hand on the helm! Turn not they back to the compass; accept the first hint of the hitching tiller; believe not the artificial fire, when its redness makes all things look ghastly.
    Herman Melville (1819–1891)

    If we can find a principle to guide us in the handling of the child between nine and eighteen months, we can see that we need to allow enough opportunity for handling and investigation of objects to further intellectual development and just enough restriction required for family harmony and for the safety of the child.
    Selma H. Fraiberg (20th century)