| So there is, as we might put it, a core of invariability surrounded by a variable periphery. |
| There was a strong relationship between this individual invariability in suppressing memory and the degree of brain activation. |
| It turns out you don't know them at all because orang-utans show incredible invariability across their range. |
| The permanence of organic forms is altogether dependent on the invariability of the material conditions under which they live. |
| The invariability of nature, as he conceived it, was true of the emotions and the will, as well as of the intellect. |
| Initially sympathetic commentators lose patience with him when they view his work in its cumulative invariability. |
