difficult to perceive

See: impalpable
References in classic literature ?
Nor is it difficult to perceive the tendency of this abandon-to elevate immeasurably all the energies of mind-but, again, so to mingle the greatest possible fire, force, delicacy, and all good things, with the lowest possible bathos, baldness, and imbecility, as to render it not a matter of doubt that the average results of mind in such a school will be found inferior to those results in one (ceteris paribus) more artificial.
In fact, it was not difficult to perceive that his most devoted attention awakened no acknowledgment, and that the grace with which he rode one of his most fiery horses was thrown away, for it was only casually and by the merest accident that the princess's eyes were turned towards him.
I answered all her little questions; she prolonged her talk, I went on following its many little windings; she sat so long, said so much, varied so often the topics of discourse, that it was not difficult to perceive she had a particular aim in thus detaining me.
These ladies were graceful and handsome; and it was not difficult to perceive at a glance that even their presence there, had a highly beneficial influence on the patients who were grouped about them.
The political undertones of the arrest were not very difficult to perceive and they weren't intended to be hidden anyway.
However, with the matter of the 'privileged' and the 'under-privileged' gaining prominence in the country with every passing day, it is difficult to perceive this great republic of ours sans the idiosyncratic countenance of caste infestation.
There are points where Hebrew wisdom texts even sound like Buddhist wisdom, such as the Preacher's testimony that "I have seen everything that is done under the sun; and behold, all is vanity and a striving after wind."(102) It is not difficult to perceive a semantic "resonance" between notions of "vanity" and "emptiness." Moreover, Prajna offers no counter claim to the prophetical kerygma, because like Hebrew wisdom, it is not concerned with the historical notion of redemption.(103)
So much has the 'marketing mantra' caught on with every aspect of commerce these days that it is difficult to perceive the success of any business venture without sales promotion playing a vital role in the whole gamut of proceedings.
The rationale behind this is that babies and children find it quite difficult to perceive the differences between things.
Nogami asked Panov to convey Japanese national sentiment over the issue to the Russian government, saying it is difficult to perceive it in Moscow, according to the officials.
It is difficult to perceive that the best interest of a child would be achieved by placing it with a homosexual couple, a union which nature never intended, and a union which according to law of nature will not produce a child.
Although fetal cell testing allows specific diagnosis of aneuploidy, "It is difficult to perceive as a routine test given the level of difficulty of detecting these fetal cells," she said.