The more you open yourself up to the possibility that good things will happen the higher probability is that good things will in fact happen. - Jordan Peterson

I will trust you — I will extend my hand to you — despite the risk of betrayal, because it is possible, through trust, to bring out the best in you, and perhaps in me. So,

You already know what you know, after all — and, unless your life is perfect, what you know is not enough. You remain threatened by disease, and self-deception, and unhappiness, and malevolence, and betrayal, and corruption, and pain, and limitation. You are subject to all these things, in the final analysis, because you are just too ignorant to protect yourself. If you just knew enough, you could be healthier and more honest. You would suffer less. You could recognize, resist and even triumph over malevolence and evil. You would neither betray a friend, nor deal falsely and deceitfully in business, politics or love. However, your current knowledge has neither made you perfect nor kept you safe. So, it is insufficient, by definition — radically, fatally insufficient.

It's a luxury to pursue what makes you happy; it's a moral obligation to pursue what you find meaningful.