[73]. “Due care,” “reasonable care,” and “ordinary care” are synonymous terms. Neal v. Gillett, 23 Conn. 437; Baltimore R. Co. v. Faith, 175 Ill. 58; Raymond v. Portland R. Co., 100 Me. 529; Durant v. Palmer, 29 N. J. Law, 544.
[74]. “But it would savor too much of refinement to hold that there is any practical inaccuracy in saying that one driving a high-powered automobile must exercise a greater care toward others on a state highway than one plodding along a country road with an ox team.” Rugg, C. J., in Com. v. Horsfall, 213 Mass. 232, 235.
[75]. “The rule, that due diligence is such attention and effort applied to a given case as the ordinary prudent man would put forth under the same circumstances, seems to meet the demands of every conceivable case.... The ratio of diligence to circumstances being thus fixed, the two extremes may change to an infinite extent without destroying the ratio, and without giving rise to what we term negligence. The bailee who undertakes the carriage of stone for the paving of a street is held to the rule that he must use such attention and effort as the ordinary prudent man would use under like circumstances.”
“The bailee, who undertakes to repair a delicate watch, is held to the rule that he must use such attention and effort as the ordinary prudent man would use under the same circumstances. The contract of the watchmaker is the same, relatively, as that of the hod-carrier. Each contracts to provide the reasonable ordinary skill and attention which a man in his position would exercise under like circumstances. The ratio, proportion, or correspondence of diligence to circumstances, of care to surroundings, is fixed and identical. And in determining a question of diligence or negligence in either case, it would be only necessary to apply the same rule to varying circumstances and persons, to demand the same ratio between varying extremes. And it is not too much to assert that all the perplexity and misunderstanding on the subject of diligence and negligence are due to the habit of confounding the specific acts and circumstances, which must always vary, with the ratio or relation between them, which remains always the same. It is true that there may be different ratios of effort and attention to the circumstances and to the results desired. A man may contract to furnish the highest skill, the most perfect means and appliances, the most assiduous attention in the accomplishment of a specific end. But, when an individual so contracts, there is the element of special or positive intention introduced, which takes the case out of the category of diligence, and renders such a contract a special and extraordinary one. The law never requires such a special, positive intention....” 6 Albany Law Journ. 313, 314.
[76]. Arguments omitted.
[77]. A fuller statement of the views of the learned judge may be found in the extracts, which follow, from his work on Bailments:
“Section 11. [On the subject of the various degrees of care or diligence which are recognized in the common law.]... There may be a high degree of diligence, a common degree of diligence, and a slight degree of diligence;...”
“Common or ordinary diligence is that degree of diligence which men in general exact in respect to their own concerns.... That may be said to be common or ordinary diligence, in the sense of the law, which men of common prudence generally exercise about their own affairs in the age and country in which they live.”
“Section 16. Having thus ascertained the nature of ordinary diligence, we may now be prepared to decide upon the other two degrees. High or great diligence is of course extraordinary diligence, or that which very prudent persons take of their own concerns; and low or slight diligence is that which persons of less than common prudence, or indeed of any prudence at all, take of their own concerns. Sir William Jones considers the latter to be the exercise of such diligence as a man of common sense, however inattentive, takes of his own concerns. Perhaps this is expressing the measure a little too loosely; for a man may possess common sense, nay, uncommon sense, and yet be so grossly inattentive to his own concerns as to deserve the appellation of having no prudence at all. The measure is rather to be drawn from the diligence which men, habitually careless or of little prudence (not ‘however inattentive’ they may be), generally take in their own concerns.”
“Section 17. Having, then, arrived at the three degrees of diligence, we are naturally led to those of negligence, which correspond thereto; for negligence may be ordinary, or less than ordinary, or more than ordinary. Ordinary negligence may be defined to be the want of ordinary diligence, and slight negligence to be the want of great diligence, and gross negligence to be the want of slight diligence. For he who is only less diligent than very careful men cannot be said to be more than slightly inattentive; he who omits ordinary care is a little more negligent than men ordinarily are; and he who omits even slight diligence fails in the lowest degree of prudence, and is deemed grossly negligent....” Story on Bailments (8th ed.), §§ 11, 16, 17.