Facts exist as they do independently of emotional biases.

(philosophy, humorous) The effect of one's actions or conduct supersedes one's ideology or opinions.

Traditionally spoken during a wedding ceremony to allow guests an opportunity to voice any objections to the union.

It is easy to lose sight of one's initial objective, becoming caught up in subtasks or in tasks only tangentially related to the original goal.

Alternative form of don't teach your grandmother how to suck eggs

One should not depend upon a favorable (and typically overoptimistic) outcome to one's plans until it is certain to occur.

Do not dedicate all your resources to one project. / Do not count on any one thing to safeguard what is valuable.

If you do me a favor then I will do you a favor; quid pro quo.

Alternative form of you don't dip your pen in company ink

Alternative form of you don't dip your pen in company ink