to double or to single quotes? that's the question

[Silvio Luis Leite Santana]

Hi all

Just to confirm some thoughts I had...

Since double quotes need to be searched for variable interpolation,
while single quotes don't, I should always (whenever possible) prefer
single quotes instead of double quotes in my programs, because:

print 'hi all';

would be faster than

print "hi all";

Am I correct?

Thanks in advance,
Silvio