We postulate that pain is a result of contact ceptor stimulation for the purpose of securing protective muscular activity. This postulate applies to all kinds of pain, whatever their cause-- whether physical injury, pyogenic infection, the obstruction of hollow viscera, childbirth, etc.英文原著 · 《The Origin and Nature of Emotions》
Whether or no this spirit was produced by, it clearly works with, a creed which postulates a humanised God and a vividly personal immortality. Men must not be busy merely like a swarm, or even happy merely like a herd; for it is not a question of men, but of a man. A man's meals may be poor, but they must not be bestial; there must always be that about the meal which permits of its comparison to the sacrament. A man's bed may be hard, but it must not be abject or unclean: there must always be about the bed something of the decency of the death-bed.英文原著 · 《A Miscellany of Men》
Alchemy, with its four Aristotelian or scholastic elements and its three mystical principles--sulphur, mercury, salt,-- must be cited as the outstanding product of the combined influence of mysticism and scholasticism: of mysticism, which postulated the unity of the Cosmos, and hence taught that everything natural is the expressive image and type of some supernatural reality; of scholasticism, which taught men to rely upon deduction and to restrict experimentation to the smallest possible limits.英文原著 · 《Bygone Beliefs》
Our postulate of origin through selection also enables us to understand why the leaf-imitation is on the lower surface of the wing in the diurnal Lepidoptera, and on the upper surface in the nocturnal forms, corresponding to the attitude of the wings in the resting position of the two groups.英文原著 · 《Darwin and Modern Science》
In addition to the mimicry-rings first observed in South America, others have been described from Tropical India by Moore, and by Poulton and Dixey from Africa, and we may expect to learn many more interesting facts in this connection. Here again the preliminary postulates of the theory are satisfied. And how much more that would lead to the same conclusion might be added!英文原著 · 《Darwin and Modern Science》
"On the other hand, if B did ask her, we are to postulate a higher degree of happiness for her?"英文原著 · 《Frivolous Cupid》