Plants are more courageous than almost all human beings: an orange tree would rather die than produce lemons, whereas instead of dying the average person would rather be someone they are not.
We deny more than we confess. We hide more than we reveal. We assume because it makes us feel exposed if we have to ask. It's easier to say "I feel nothing" than to admit "I feel something." It takes...
(n.) energy; pep.
(n.) courage, determination.
(n.) Know-how, expertise.