A seeker after Truth cannot afford to indulge in generalisation. Darwin for the greater part of his book Origin of the Species [sic] has simply masse… - Mahatma Gandhi

An error does not become truth by reason of multiplied propagation, nor does truth become error because nobody sees it. Truth stands, even if there be no public support. It is self sustained.

Of the three things that are indispensable for the subsistence of man, — namely, air, water, and food — the first is the most important. We should all be as much against the breathing of impure air as we are against the drinking of dirty water and the eating of dirty food; but the air we breathe is, as a rule, far more impure than the water we drink or the food we eat. ... In fact, every child should be taught the value of fresh air, as soon as it is able to understand anything. ... All men should learn to breathe through the nose alone. And this is not at all difficult, if we remember to keep our mouth firmly shut at all times, except when we are talking. After learning how to inhale the air, we should cultivate the habit of breathing fresh air, day in and day out. (Chapter III, Air)

Live as if you were to die tomorrow. Learn as if you were to live forever.