requires some effort of the mind, the predicate in the lattter is not seldom placed in the preterite also.
I was her flrm belief that all unhappy marriages dated from the wife only.
Mrs. Lynn Sinton, S o w i n g the Wind, I, Ch. X, 245.
I thought iii news came fast enough. Mrs. Gask, Cranf, Ch. XIII, 238.
The shifting of the tense is sometimes all the more objectionable, because it may imply that the statement is false, as in:
He taught us that the earth was as flat as a pancake. Jespersen, T i d o g Temp, VII, 399.