Stress is not necessarily something bad it all depends on how you take it. The stress of exhilarating, creative successful work is beneficial, while that of failure, humiliation or infection is detrimental.

The element of chance in basic research is overrated. Chance is a lady who smiles only upon those few who know how to make her smile.

The true scientist never loses the faculty of amazement.

Man should not try to avoid stress any more than he would shun food, love or exercise

The healthiest of all human emotions is gratitude.

Mental tensions, frustrations, insecurity, aimlessness are among the most damaging stressors, and psychosomatic studies have shown how often they cause migraine headache, peptic ulcers, heart attacks, hypertension, mental disease, suicide, or just hopeless unhappiness.

To remain healthy a man must have some goal, some purpose in life that he can respect and be proud to work for.