Grasping Truth

Edward Wilson went with professor Scott on his last expedition to the Antarctic as doctor and zoologist. He endured the terrible winter journey with Bowers and Cherry-Garrard when they went in search of Emperor Penguin eggs (and he was one of the five who reached the South Pole in January 1912. The following words are from Edward Wilson's diary:
 
The more we try the clearer becomes our insight, and the more we use our thinking faculties the quicker they become in their power of grasping points of truth.
 
Truths are not things we can pick up without taking trouble to hunt for them. And when we find a truth we really posses it, because it is bound to our heart by the process by which we reached it ... through trouble, difficulty or sorrow ... a man binds it into his life. But what is easily come by is easily lost.
 
Every bit of truth that comes into a man's heart burns in him and forces its way out, either in this actions or in his words. Truth is like a lighted lamp in that it cannot be hidden away in the darkness because it carries its own light.
 
Edward Wilson (1872-1912)