> as lemmas

1676 Earl of Orrery Eng. Adventures i. 19 My Father..knew that happiness has its solid Throne only in the mind.

1732 G. Berkeley Ess. New Theory of Vision (new ed.) §lxxvii, in Alciphron II. 288 All which visible Objects are only in the Mind; nor do they suggest ought external..otherwise than by habitual Connexion as Words do Things.

1753 S. Richardson Hist. Sir Charles Grandison II. xxvii. 248 I started, and even trembled. What I suffered there, was all in my mind.

1812 J. Baillie Dream ii. ii, in Series of Plays III. 132 Oh! they were terrible!—But they are All in my mind as the indistinct horrors of a Frenzied imagination.

1874 W. Wallace tr. G. W. F. Hegel Logic §42. 75 That unity of self-consciousness,..Kant calls transcendental..; and he meant thereby that this unity was only in our minds, and did not attach to the objects apart from our knowledge of them.

1910 Encycl. Brit. I. 54/2 G. B. Riccioli concluded that they existed only in the minds of the observers, and were due to instrumental and personal errors.

1976 in M. Frayn Alphabet. Order i. 15 Well, it's all in the mind, isn't it? It's all up here.

1992 New Republic 13 Apr. 29/1 Vogel's surrogate heroine, Anna, undertakes that European journey—but it takes place only in her mind.

1998 New Scientist 20 June 5/1 The ‘green flash’ that watchers sometimes report at sunset is often all in the mind, a scientist from California reported last week.