To Be Adult Is To Be Alone.

A Body Of Work Such As Pasteur's Is Inconceivable In Our Time: No Man Would Be Given A Chance To Create A Whole Science. Nowadays A Path Is Scarcely Opened Up When The Crowd Begins To Pour In.

A Man Is Not Old As Long As He Is Seeking Something.

To Reflect Is To Disturb One's Thoughts.

One Must Credit An Hypothesis With All That Has Had To Be Discovered In Order To Demolish It.

We Give Others Praise Which We Ourselves Don't Believe, As Long As They Respond With Praise We Can Believe.