Science has to be understood in its broadest sense, as a method for apprehending all observable reality, and not merely as an instrument for acquiring specialized knowledge.

The secret of life is to be found in life itself, in the full organic, intellectual and spiritual activities of our body.

A few observation and much reasoning lead to error; many observations and a little reasoning to truth.

Prayer is a cry of distress, a demand for help, a hymn of love.

Man cannot remake himself without suffering, for he is both the marble and the sculptor.

The modern city consists of...dark, narrow streets full of gasoline fumes, coal dust, and toxic gasses, torn by the noise.

In joy or sorrow, health or sickness, prosperity or the reverse, the effort must still continue. One must rise after every fall and gradually acquire courage, faith, the will to succeed and the capacity to love.