If that sentence lights your intellectual fire, philosophy may be the discipline for you. Consider some of the subdisciplines within the broad scope of the study of philosophy. This means that one accepts responsibility for backing up ones own opinions with reasons and that one is prepared to consider the reasons others put forward to support their competing claims. Logic is concerned with the proper relationship between our reasons and the opinions they are supposed to support. Rational thinking is fundamental in business, law, medicine, science, and virtually every other area of human endeavor.
Ethics is a subdiscipline of philosophy that studies right and wrong.
Many observers of contemporary American culture feel that we are facing an ethical crisis in business, education, medicine, government, and other realms of social activity. Basic ethical issues facing all of us include abortion, euthanasia, obligations to the disadvantaged, fulfilling contracts, rights of criminals and victims in the judicial process, civil disobedience as a method for changing the law, and our impact on the environment that future generations will inherit. Epistemology is the study of knowledge and belief. The epistemologist asks how we can explain error and how we can guard against it. Metaphysics is the study of what exists.