The way to be invisible - is to truly be imaginary. But since you cannot imagine yourself, you have to clone your imagination into being an image of yourself. Imagine that.
Vulnerable, like all men, to the temptations of arrogance, of which intellectual pride is the worst, he [the scientist] must nevertheless remain sincere and modest, if only because his studies constantly bring home to him that, compared with the gigantic aims of science, his own contribution, no matter how important, is only a drop in the ocean of truth.
To make a deliberate falsification for personal gain is the last, worst depth to which either scholar or artist can descend in work or life. (Letter to Muriel St. Clare Byrne, 8 September 1935)