Famous quotes containing the words sufficient and/or evidence:
“Parents vary in their sense of what would be suitable repayment for creating, sustaining, and tolerating you all those years, and what circumstances would be drastic enough for presenting the voucher. Obviously there is no repayment that would be sufficient . . . but the effort to call in the debt of life is too outrageous to be treated as anything other than a joke.”
—Frank Pittman (20th century)
“Generally there is no consistent evidence of significant differences in school achievement between children of working and nonworking mothers, but differences that do appear are often related to maternal satisfaction with her chosen role, and the quality of substitute care.”
—Ruth E. Zambrana, U.S. researcher, M. Hurst, and R.L. Hite. “The Working Mother in Contemporary Perspectives: A Review of Literature,” Pediatrics (December 1979)