“Rest is not quitting
The busy career,
Rest is the fitting
Of self to one's sphere.”

As quoted in Kepler by Walter William Bryant (1920), p. 35
Astronomia nova (1609)

Andrew Marr's History of the World, Episode IV, Into the Light (28 October 2012)

Source: The Sword or the Cross, Which Should be the Weapon of the Christian Militant? (1921), Ch.4 p. 65-69
Context: The third reference is to Matthew 22:21 and to the 13th chapter of Romans. It is said that Jesus and St. Paul accepted the authority of the state, and since the state rests upon force and war, the Christian must likewise accept these. It is quite true that Jesus recognized the sphere of the state, in the statement, "Give Caesar what belongs to Caesar." He paid taxes and never renounced the authority of the state. But this is only a half-truth. He likewise said, "Give God what belongs to God," and "Seek ye first the kingdom of God." St. Paul also upholds the state, especially in the thirteenth chapter of Romans. Upon close inspection of the teaching of St. Paul, however, the most that can be said in this connection is that the authority of the state is to be recognized and obeyed in so far as it does not conflict with the higher law of God.... The New Testament is filled with instances where the disciples refused to obey the government authorities, and many times they were imprisoned for disobedience. When commanded by the officials to cease their Christian activity, they replied, "We must obey God rather than man."

Source: Retirement (1782), Line 623.

Hays translation
Source: Meditations (c. AD 121–180), Book VI, 2

The Man With the Blue Guitar (1937)
Context: What is beyond the cathedral, outside,
Balances with nuptial song.
So it is to sit and to balance things
To and to and to the point of still,
To say of one mask it is like,
To say of another it is like,
To know that the balance does not quite rest,
That the mask is strange, however like.

Source: Think Big (1996), p. 46

Source: Argonautica, Book VIII, Lines 28–30