Paul Arthur

The Philosophy of John Dewey

1989

The philosophy of W. V. Quine

1986

The Philosophy of Martin Buber (Library of Living Philosophers)

1967

The philosophy of Karl Popper

1974

Philosophy of Ernst Cassirer (Library of Living Philosophers

1974

Notas Autobiograficas/ Autobiographical Notes

2016

Kant's pre-critical ethics

1977

Albert Einstein

2001

Albert Einstein: philosopher-scientist

1998

Theology and modern life

1940

The philosophy of W.V. Quine

1998

The philosophy of Sarvepalli Radhakrishnan

1992

The philosophy of Sarvepalli Radhakrishnan

1991

The Philosophy of Karl Popper, Volume 1

1988

The Philosophy of Karl Jaspers

1981

The Philosophy of Jean-Paul Sartre

1981

The philosophy of George Santayana

2003

The Philosophy of Georg Henrik von Wright

1989