(1) The only controls that can be employed in these studies are the use of valid research instruments, constancy of condition, and accurate conceptual and operational definitions of the research variables.

(2) In order to account for the constancy of the speed of light, Einstein had to accept that moving clocks run more slowly than stationary clocks and that moving objects shrink in the direction of their motion.

(3) Shakespeare did not think of constancy as a psychosexual characteristic allied to masochism, but rather as an earthly manifestation of divine love, which is beyond gender.

(4) For example, the development and maintenance of a significant relationship over time requires constancy or commitment.

(5) And when she does, your constancy will have its just reward.

(6) In my view he is less a figure of his age than one above it, characterized by his constancy and the ritual repetition of certain themes.

(7) The regulation of body fluid and the constancy of the internal environment is the primary role of the kidneys.

(8) The constancy of the tradition

(9) Its stability does not, therefore, depend on the presence of developmental constraints or constancy of the environment in which the organisms live.

(10) They worship with great vigor and devotion, with unstinting regularity and constancy .

(11) Because it seems to me there has to be a constancy and consistency in the agricultural policy.

(12) With an unceasing admiration of your constancy and devotion to your country, and a grateful remembrance of your kind and generous consideration of myself, I bid you all an affectionate farewell.

(13) The emotions they played on were consonant, at least implicitly, with ideas of spirituality and constancy , of emptiness and isolation.

(14) I think it's hard to imagine that a part of human nature isn't to actually seek some sort of sense and order, some sense of constancy in our world which otherwise becomes unworkable if it's totally unpredictable and unknowable.

(15) This approximate constancy suggests that mature cell length may be regulated to fall within a preferred range.

(16) I also admire his constancy and how though I might not agree with him he sticks to his guns.

(17) It also depends on the constancy of its rate; meaning, that a watch gains or loses the exact same amount of time each day.

(18) From a dog you get stolid clear-eyed constancy : we belong together and that's how it is.

(19) No single measure of evenness remains constant over all statistical distributions, so if constancy as a type of independence is required, the appropriate distribution must first be determined.

(20) The need to respond to good with good, to generosity with generosity, constancy in her affections, patience and love of work are qualities that have been with Lena since childhood.